So, this is my first mpreg fic. I'm not that into it but I had this really cute idea and I had to run with it, so don't read and comment if you know you're not going to like it.

I will make more chapters I just don't know when because I still need to update my other fic.

Chapter One;

It started with cramps, he had these horrible cramps that he thought were odd, just figured he wasn't drinking enough water, and lacrosse was really taking it out of him. So he quit drinking soda, and drank water like he was supplying a spring. Then they went away, no big deal.

Then, a few months later he started to feel sick. He would wake up, and bee-line to the bathroom to release the contents of his stomach. Certain things like, the smell of cherry or burnt toast would send him running, and he couldn't take it. He figured he'd contracted some stomach bug at school, the Petri dish of sickness. So he drank some orange juice, took some vitamins and tried to get some rest. He was constantly tired, and just felt sluggish. Guessed he was sleeping too much, but it wasn't making any sense. No matter what he did, he wasn't getting better. He was irritable, tired, and couldn't really do much other than sleep, eat what wouldn't make him sick, and try and go to school.

It took all of three whole months, for something to slap Stiles in the face to wake him up.

It had been exactly 11 and a half weeks since the fornication that conceived this, and it took eleven weeks for Stiles to realize that it was much more than just a stomach bug he had on his hands.

It was a Saturday, he was off and had gone to see Scott at work to go eat lunch, and before he knew it he was confessing to Deaton his symptoms, maybe hoping for some answer. 'I'm a man, and I don't go to doctors, so I talk to a witch doctor-vet about them.' Was his current logic, and maybe it wasn't so bad of an idea, he was definitely glad he hadn't seen a doctor.

"Well, you definitely have a stomach bug, or maybe more of a stomach parasite? That sounds much more accurate." Deaton professed, trying to seem as nonchalant as possible.

"So, I have a tape worm? That would make a lot of sense, because I feel sick and tired, but I'm not eating that much and you eat a lot when you have a tape worm, but I do think I've lost a little weight because most of what I do eat, gets thrown up." He just kept talking and talking but Dr. Deaton already knew what Stiles didn't, and breaking news like this to a kid like Stiles, was like opening a can of worms.

"Stiles, I think maybe you would like to bring Derek in so we can all talk about this together, it's more of a matter to discuss with a couple. He needs to hear this too." Stiles looked at him oddly, but he just kept on working on the dog on the table, and not looking him in the eye, which was starting to make him uneasy and aggravated.

"Do I have a STD? I thought Derek couldn't get or give them, that's why we aren't using condoms and I didn't think-"

"Stiles, you don't have a STD but, you should have been wearing those condoms." He said, still not making eye contact will a slight laugh in his voice. Scott was still across the room, looking as puzzled at Stiles.

"Dr. D just tell me what's wrong so I can deal with it, instead of playing these mind games, I'm getting a head ache, and I'm tired of being here." He was getting aggravated and was ready to pop this man upside the head.

"Well Stiles, you do have a parasite that is commonly contracted through intercourse, it's more prominent in women, but in your case with an alpha werewolf for a mate, I wouldn't be so surprised. I'm glad you're here because this is pretty serious, even though were catching it late and all. You have all of the symptoms, except of course for weight gain, and swollen feet only because it isn't that progressed. It usually, only lives inside you for about nine months, as it grows and develops and usually results in an infant."

Deaton, looked about at sarcastic as he sounded as he took the dog from the table and placed it back into it's cage, and Stiles just looked at him dumb founded, his brain still processing what he was saying. Scott, of course still has no clue, but Stiles knows exactly what he's talking about. He still couldn't believe it, this would only happen to him because what is his life really? He read about it in one of the books that Derek still had at his house, figured it was just some old legend and didn't really pay that much attention to it, now he was wishing he would have.

That's when the panic attack set in, his hands, clammy and shaking wrapping around himself, as he sunk to the floor looking scared, and confused, his breathing was forced and rapid, and Scott ran to him, sinking to his level, trying to help him through whatever was wrong, still not grasping what Deaton had said.

"Stiles, what's wrong what is he talking about?" He rushed his words trying to hold Stiles fists, and looking back and forth from him to the vet.

"Should I call your dad?" He said, panicking when his friend wouldn't say anything.

"No!" Stiles yelled.

"Don't you get what he's saying?" He looked at him, struggling to get his words out. Scott just shook his head and Stiles composed himself, turning to face him.

"Scott" He struggled, not wanting to say what needed to be said, because it would only make it more real to him than it already was. "Scott, I'm pregnant." He breathed, trying not to freak out again, he looked up at Scott who was still looking at him like he was speaking another language.

"Scott, I'm pregnant! Do I need to spell it out for you?" He yelled, letting his last words reach a higher octave that he meant for them to. Scott just shook his head, starting to understand, and sat down next to him still grasping his hands. Stiles looked over at Deaton, who was standing in front of them, holding a box out to Stiles.

"If you don't believe me here, and if you want anything like an ultrasound or some sort of test done, come to me. Don't want any doctors involved because chances are, that's a werewolf that's growing in there." He said gesturing to Stiles stomach with the box; Stiles snatched the test and stood, walking to the bathroom as slow as possible, thinking maybe the results would change by the time he got there.

"I don't know for sure, but from the sounds of it you're about ten or eleven months. You need to start taking better care of yourself Stiles, like eating better, and getting more rest. We don't know if this baby will even survive this pregnancy. It's extremely high risk. We all just need to keep a close eye on it." Stiles just flinched at the word 'baby', still not saying a word, and not really caring what happened.

"I'll run out to the store to get you some prenatal vitamins, just stay here and I'll be back in an hour or so." He said, leaving the office and leaving Stiles and Scott to deal with the results of the pregnancy test.

Stiles slammed the door to the bathroom, angry and frustrated. He ripped open the box, spilling it's contents and cursing when they fall to the floor. He began reading the instructions, and setting up the test and the timer on his phone. He skillfully pee'd on the small stick and left it next to his phone with a timer set for thirty minutes. He came back out, red in the face and looking like a mental case.

"So, what's it say?" Scott asked, trying to look concerned.

"I have to wait thirty minutes. I already know what it says though." Stiles barked, and sat up on the table across from were Scott seemed to be organizing something.

"Derek and you will make cute pups." He said, turning his head and smiling. Stiles grimaced, letting an out a huff that could blow down all three of those pigs houses.

"Are you fucking kidding me? You find out your best friend, who is a guy, is pregnant with a were baby and all you can say is it will be cute? Have you lost your mind?" He yelled, knowing all of Beacon Hills is hearing this. Scott just frowned, and walked over to Stiles, with stuff in his hands.

"Look man I'm sorry, I'm just trying to look on the bright side of things. There are good things about this, you know. You guys are going to have a baby." He said, turning back to finish his work, leaving Stiles to fume and brood, looking a little too much like his boyfriend.

"Oh yeah, becoming a father at seventeen sure has its perks huh Scott." He said, with enough sarcasm to cure aspergers.

"Not to mention, I'm the one knocked up." He said, looking more serious. He heard the alarm go off on his phone, and hopped off the table. He knew what the results would be, just thought that he needed something to really prove it, more evidence than the symptoms, and Deaton's analysis.

He stared down at the little pink plus sign swimming up to view on the test. He slammed the door again, wanting to be alone. He stuck the test in his pants pocket, to leave for his dad since he knew he would never believe him. He knew he would have a whole lot of explaining to do. Derek was a whole other story that he wasn't ready for; he knew Derek was going to either wolf out on him, or turn into a puddle of pudding on the floor.

He looked at himself in the mirror scanning his face, he looked pale and sick. He washed his hands, trying to distract himself and when he was done, he let his eyes drift to his middle.

He hesitantly unbuttoned his plaid over shirt and placed in on the sink counter, and pulled up the shirt underneath it to reveal his pale, mostly slim stomach. 'That's all about to change.' He thought, and cursed himself. He turned to the side, and could see where he was already gaining weight. It was probably his brain, messing with him but he couldn't remove his eyes, he wasn't ready for this and for a second he hoped that it wouldn't make it, and that he would miscarriage or something so this would all just go away. Then he felt something change in him, almost like the angel on his should smacking him, wondering how he could say such a thing.

His hand shook as he slowly placed it on his stomach, he let out a long breath that he had been holding as he slowly moved his hand to see if he could feel something. He knew he wouldn't be feeling anything for at least a month, but the realization was setting in as he stared at himself in the mirror, with his hand on his stomach that his life was about to change drastically.

There was another life inside him, he was growing a life inside of his body, that he and Derek had created, and it was theirs. A baby that would depend on him and Derek, for the next eighteen years and it was his responsibility. He let a small smile, cross his face with the thought of him and Derek having a kid that was soon wiped clear off when he heard Deaton come back into the office.

He quickly pulled his shirt down, leaving the other one off completely and wiped his face with his hands. He grabbed his shirt, and opened the door to the bathroom. Dr. Deaton was waiting with a bag, of vitamins and a list of things he should and should not eat and a list of appointments he would have to go to, along with a big book on what to expect when you're expecting.

Stiles just gave him a 'are you fucking kidding me' look that was returned with a pat on the shoulder and a smile. Stiles just huffed and faced towards Scott.

"Hey man, I have to go break this news to my dad or something and I guess I should get started on this book. I'll see you later." He breathed, and turned towards the door.

"Alright, I'll come over later when it's all blown over between you and papa bear, alright?" He asked, and Stiles just threw thumbs up for affirmation. He got in the car, and decided to call Derek, his dad was going to be far worse and he needed some confidence.

He dialed Derek's number, his stomach sinking with every ring until he heard a familiar voice on the other end.

"Stiles, what's up?" He said, guessing it was important.

"Hey, how are you? In a good mood, I hope so or at least not angry, cause I really don't want you to kill me." He stuttered, feeling like an asshole.

"Stiles, I wouldn't kill you. All that 'I'll rip your throat out crap' was just to intimidate you, which failed a long time ago, now spit it out, what's going on. Did Scott do something stupid?" He sounded aggravated, and Stiles knew he was going to seriously kill him if he thought the worst thing was Scott doing something stupid.

"Uh, no see it really has nothing to do with Scott." Stiles stopped to catch his breath, and prepared himself.

"It's more about me, and you. Like, and us thing. You know how I've been like sick lately. Well, we were at Deaton's today and I was telling him about it and we finally figured out what's wrong." He said, hoping that was enough and he wouldn't actually have to say the words 'I'm pregnant' out loud to Derek.

He just made a sound on the other end, obviously waiting for more of an explanation.

"Well, I took a test, and it came back positive." Stiles started playing Deaton's mind games.

"Stiles, do you have an STD? Are you having sex with someone else?" Derek sounded concerned and angry, Stiles actually laughed, a crazy 'I'm an insane pregnant guy' laugh.

"No, I uh, actually Derek I'm kind of having a baby." He said, whispering but also hoping he wouldn't have to repeat himself.

"Stiles, is-"he stopped himself, obviously sounding confused.

"If you ask if it's yours I'm going to scream." Stiles said, seriously. Derek just grew more silent.

"I was actually going to ask you if this was a joke." He said finally, laughing. Stiles felt a little hurt, but could only imagine how Derek felt.

"Well, it's not. I took the test, and Deaton got me all this stuff like vitamins, and books. I'm supposed to come back in a few days to get an ultra sound to make sure everything is alright." Derek, let out a breath.

"Well, when are you going to tell your dad, cause I kind of need to be ready for this 'you're the sheriff's son, underage, and pregnant and I'm a werewolf, and you're my mate and were gay.' conversation that were all about to have." Stiles just let out an animalistic noise that sounded like complaining. Derek decided to just drop it.

"So, how far along are you?" Derek asked, trying to sound concerned and make some sort of conversation. Stiles just chuckled.

"Well, supposedly I'm eleven weeks, or I guess three months whichever one sounds better." Stiles huffed, and started to turn the car on, so he could begin the long and agonizing drive home. He set his phone in his lap and put it on speaker.

"Well damn, it's been that long and you're just now finding out?" He said, and Stiles just rolled his eyes.

"Yeah, well obviously the first thing on my head was I think I'm pregnant." Derek let out a growl.

"Well, I figured you're supposed to be showing a little by now so I don't know." He said, sounding defeated. Stiles thought back to standing in the bathroom and now he knew his mind wasn't playing tricks on him, that he actually was getting a little bump. He shivered.

"Yeah, well I guess I have a little. Gained weight I mean." He said, shyly.

"Well, come over, I want to see you." Derek barked, and hung up. Stiles just threw his hands in the air and turned around.

He figured since it had been a week since he'd seen Derek meant it wasn't just because he was pregnant that he wanted to see him, he was wrong. The second he pulled up to the house, and started walking towards the door, Derek was already out of the house and coming to him. Stiles, stopped and he knew what was coming. Derek looked him up and down, then back to the jeep to make sure they were alone and then took him inside.

He could smell Deaton's office and Scott all over him, mixed with the new smell of Stiles and pregnancy that smelled so sweet and intoxicating, he had no idea why he hadn't smelled it earlier on him, but it was obvious now, and it was making him want to protect, and scent him. He stepped closer and began to rub his forehead against Stiles' face and neck to do just that to him, make him smell like his mate and Stiles complied by putting his hands on Derek's hips letting him cover him in eau du Derek.

Derek's eyes opened quickly, like he had remembered the stove was on or something and shot to Stiles' middle. He looked back up at him, almost asking for permission to touch, like it wasn't his right to. Stiles just nodded and braced himself for being man handled. Derek shed him of his shirts, and turned him sideways, looking intently at his stomach. He could see the newly formed, but small 'baby belly' and he ran his hands along it almost as if he was making sure it was real. He began to rub his forehead and cheeks all over Stiles stomach. He rolled his eyes as his stubble tickled and scratched at his fragile skin. Derek stopped, looking up at Stiles and back down to his stomach. He stood then, and kissed Stiles' forehead.

"I can hear its heart." He said, looking sheepish. Stiles just looked at him stunned.

"Wow, you can actually hear its heart?" He said, looking like a fool.

"Yes, it's fainter than yours but it's right there and I can hear it. The heart starts beating twenty-one days after conception so; I'm surprised I hadn't heard it before. Must be because I just wasn't looking for it." Derek just rested his head on top of Stiles', and continued to rub his belly felt so guilty and wrong but for now he wouldn't let Stiles know, he wanted to keep him as happy as possible. Stiles just hummed and nuzzled into Derek's chest.

"Well, look I love the bonding and all that but I really should be getting home, alright? We'll talk more about all this=" He said, waving his hands around his middle. " Mess when we go back to Dr. D's tomorrow, alright?" He asked, looking Derek straight in the eyes.

"Alright," He replied, smiling at his more than goofy boyfriend.

"Go tell your dad without getting me killed and drive safe. You're carrying precious cargo." He said winking. 'Definitely puddle of pudding.' He thought, laughing and walked to the door holding up his middle finger as he left. Derek just rolled his eyes; he could only imagine what their kid was going to be like with him for an example.

Stiles got home, knowing that his dad wouldn't be there for a good three hours. That gave him enough time to take a nice relaxing shower, look over the lists Deaton had given him, and start a nice healthy dinner to talk over.

When his dad did finally come home, Stiles just wanted to hide.

"Hey Stiles, how was your day?" He asked walking into the kitchen where he found Stiles, making dinner. "Wow, thanks for making dinner because I'm really tired, and I was going to order out and I know I'm not the only one sick of pizza." He said placing his coat on the back of his chair and taking a seat while his son served him.

"Yeah, well I figured we could talk, you know about our day and stuff. You want a bear, maybe two?" He asked, trying to be as normal as possible, even though their normal was Stiles eating dinner and going to his room, while his dad ate in front of the TV.

"Yeah, I'd like that." He said, looking oddly at his son as he sat down at the table.

"So what did you want to talk about?" He asked, started on his food, and cracked open his bear.

"Well, I guess start with just laying it out as it is, and I'll just answer the questions as they come." He said, looking at his dad while he ate and taking a deep breath.

"Well, I have a boyfriend, Derek Hale, who's a werewolf and he got me pregnant, any questions?" He said trying not to have an aneurism when his dad spit out what food he had in his mouth and looked at him like he'd grown a tail, which he would much more prefer over being pregnant.

"Stiles, what kind of drugs are you taking?" His dad shouted, in disbelief.

"Dad, I'm not on drugs. I'm serious, but I could understand how you could feel that way, I think the same thing too sometimes, 'like is this really my life' or am I in some sort of spanish soap opera-"

"Stiles." His dad looked like he was about to club him with his boot if he didn't get to the point soon.

"Yeah, I know explain, I will don't worry. Derek and I have been dating since last summer, it was a year this past June actually, after school ended." He said, realizing he should have broken things up and fed them to him in chunks instead of throwing it all in his face.

"Okay, Stiles. So I do have a question, what leads you to think that he's a werewolf?" He said, obviously still thinking his son is on something.

"It's not just him, Its Scott too, and the runaways Isaac, Erica, Boyd, and Jackson. Peter his uncle; it's why the Argent family wanted them dead so bad, they're werewolf hunters. Look, Scott's coming over later tonight I can prove it. Just, you have to believe me, none of this is a joke. It's serious." He said looking kind of upset because it was serious, and he needed his dad to be there for him.

"Okay, okay. Go on." He said, making a motion with his fork, still looking at Stiles like he's a loon.

"And Derek's the alpha, like he's the pack man. Not like the game, he isn't a little yellow thing that goes around eating fruit and stuff but he's like the man of the pack. Because we all are a pack, and he's like our ruler, not like a dictator but-"

"Okay Stiles I get it, Alpha. Now you're not a-"

"No! I'm human. Yeah, so are Allison and Lydia and Danny. We have a choice we don't have to take the bite." He said, looking more serious now, he felt a little happy that he could finally describe his life Yeah this was his life' to his dad and get him to understand, even though the circumstances weren't so great.

"And, because he's the alpha he has to reproduce, I don't know I read it somewhere when I was first doing research and I should have paid more attention but I didn't and here I am. I was at Deaton's today when I was telling him about how I felt and I took the test, and he gave me all this stuff and said to come back, in fact here." He said, fumbling around in his pocket and sliding the test across to his dad.

"Not a joke." He said, while his dad looked at the test completely astounded.

"Stiles, this is impossible. How did this even happen? We need to get you to a doctor or something." He said starting to stand.

"No! Dad, we can't go to a doctor. We have to go to Deaton he made it really clear to me how dangerous it can be going to a regular doctor. Nothing would come back normal, because chances are I'm having a werewolf, not a human baby." He said, letting his voice drift a little, but he knew his dad could hear him. His dad sat back in his chair, and covered his face with his hands. He took the test, and handed it back to Stiles.

"Well, eat your dinner okay? You need to eat. I'll go to the store tomorrow and get you some food that is good for you." He said, nodding and taking his empty plate to the sink.

"Yeah, Deaton already got a list of what not to and what to eat. Stuff like that, and some vitamins. He said he would explain more about what's going to be happening to my body after he gets an ultra sound to see how far along I am." Stiles said, trying to eat and talk at the same time.

"Well, how far along did he think you were?" His dad asked, turning to face him while wiping his hands on a towel.

"Well, he said I was anywhere from ten to eleven weeks. Like almost three months."

His dad looked puzzled.

"Well, that's a long time, I hope everything is okay. Neglecting a pregnancy that early in it could really affect the baby." He said coming closer to Stiles and trying to get a good look at him.

"Are you," He started moving his hand around like he's trying to catch the right words out of the air. "Visible?" He finally settled, and Stiles tried to swallow so he could talk.

"Not really, barely. I can still hide it for a few more weeks." He said, looking down at his stomach. His dad looked concerned.

"How do you think you're going to manage school?"

"Well, I thought once I started showing I'd drop out. But that would be useless, people are going to know one way or another, I mean I can't just pull a baby out of thin air." He said turning to face his dad. He just nodded and understood his son's decision.

"Well tomorrow I want to come, help figure out what were going to need to do for the next six months of this pregnancy." He said, struggling on the last word, patting Stiles' back and walking out of the kitchen to turn on the TV and try to relax.

Stiles walked in to the living room, carefully sitting down in the chair across from his dad.

"So, you aren't mad?" He said looking sad, and scared. Hoping his dad wasn't just hiding all of his anger.

"I'm not angry, son. I'm disappointed and I'm upset that all of this is happened to you this way, but I'm not angry. I'm going to help you get through this, both you and Derek. This baby is welcome, no matter what. I'm going to love it just the way I love you, and I'll always love you Stiles. And besides, how could I complain about having grand kids?" He said, smiling. Stiles just stood and went to hug his dad. He felt a relief off his shoulders, like he could finally relax in his own skin for the first time today.

Stiles eventually called over Scott who gladly presented his beta form to Stiles' dad.

Scared the crap right out of him, he almost had a heart attack, which Stiles blamed on all the fried foods he's been eating. He was just glad that his dad finally believed everything he was saying, and was on the same page as everyone else. Glad his dad wasn't out to kill his boyfriend, and accepted what was going on, even if Stiles didn't.

He and Scott stayed up talking, eating junk, and playing video games. Stuff normal teenage guy do. Stiles was going to spend these next few weeks enjoying himself before everyone started treating him like a china doll. He knew he would have to take it easy, eat better, and rest more. He would need to quit lacrosse, which killed him. He would need to double up on some of his classes so he could graduate on time. Lots of important things needed to be done, but for now he was going to be a teenage guy and enjoy having fun.

Thanks for reading this I really hope you like it, and I really hope I can update soon because I had a lot of fun writing it.

Thank you guys so much, and happy readings!