Hello, Phineas and Ferb fanbase! Let me introduce myself. My name's Shijin, nice to meet you. I was an anime writer before, so hence the japanese-looking name. (Shijin is poet in japanese). Hopefully, we can be friends. This is a story that I really haven't seen yet, so it's Phinabella but Isabella is pregnant. Just to let you know, you guys will probably choose how the story goes. I'll leave options at the end of the story and you guys and say what you want to see. Hopefully you'll enjoy this.

I don't own Phineas and Ferb.

Isabella stared down at the pregnancy test in shock. She and Phineas had moved in to a one-bedroom apartment after they graduated tri-state-state. It had only been a couple of months before they "did it" for the first time. Now, a month later, Isabella had been feeling weird, but decided not to tell her boyfriend.

Oh my gosh, what will he think? Isabella thought as the positive pregnancy test stared back at her.

Phineas was at work, and he wouldn't be back home until 7:00. He was a construction site manager and builder.

Isabella was a lawyer and Junior Fireside girls instructor. Isabella had gotten home earlier today. She took half of the day off to go and buy the tests and to actually take it. Now, her fears were confirmed. A million thoughts raced through her brain. Am I ready to be a mom? I'm only 23! How will Phineas take it?

Isabella could only sit and wait.

Phineas finally came home. He sensed that something was wrong. He found Isabella waiting in their bedroom, her black hair covering her face and hands covering a package.

Isabella looked up, saw Phineas, handed him the package and ducked her head back.

Puzzled, Phineas opened the package and his jaw dropped.

Isabella prepared herself for the worst, but to her astonishment, Phineas scooped her up in a hug and kissed her.

"We're going to be parents!" Phineas said as he twirled Isabella around.

"Wait... you're not mad?" Isabella asked.

"It was a surprise, but how can I be mad?"

Isabella laughed and allowed Phineas to dance her around their apartment.

Phineas was already on it. "We probably should look into houses because this apartment isn't big enough, and we need to tell the family."

Isabella nodded. "That's right. We also should move soon because then I wouldn't be able to help because, you know.."

"That's right." Phineas nodded.

That night, Phineas and Isabella went to friends and family to deliver the news personally. Everyone was excited for them, and made bets about the gender of the baby.

Candace was the most excited. She and Jeremy already had two kids, a seven-year old girl named Amanda, and a five-year old boy named Xaivier, and were expecting another boy, who they were naming Fred.

"Oh my gosh you guys! I am so excited for you!" Candance squealed. Jeremy had been happy for them too.

"wait, do you have an ob/gyn?" Candace asked.

"we were planning to look tonight," Phineas explained.

"Well, why don't you guys come with me tomorrow? Fred is due for a checkup," Candace said as she put her hand on her growing belly.

"So how far along are you now?" Isabella asked.

"Five months," Jeremy said as he picked up Amanda and xaivier for bedtime.

"Ok, we'll come with you tomorrow." Isabella said. "Who's the doctor?"

"Stacy, she graduated a while back." Candace said.

"All right, we're in."

The Next Day

Candace had just finished her checkup. Fred was doing fine and was healthy.

"Oh hey Isabella. Hi Phineas." Stacy greeted them as they walked in.

"Hi, we just found out that we were expecting but don't know how far along."

"first off, congratulations! Secondly, sure, come on in for a quick checkup."

Isabella laid down on the table and lifted her shirt as Phineas stood beside her.

"Well, it looks like the baby is doing fine. And you guys are about five weeks along. Wait. Scratch the 'baby' part."

"What do you mean?" Isabella asked.

"They're twins."

Isabella and Phineas looked at each other in shock. After it wore off, they were happy.

"Well, looks like you guys will have your hands full." Stacy noted.

"Yep. But we couldn't be happier."

"Ok, you guys should come back in about a month and then more frequently as the due date approaches. Here's my card. The receptionist up front can help you schedule your next appointment."

"Thanks Stacy. Oh, one question. When will we find out the genders?" Phineas asked.

"Its too early to tell. When you're three months in, we probably can tell then."

"Ok. Thanks stacy!" Isabella called as they walked out.

I can't believe it. We're having twins. Phineas thought as Isabella leaned against his chest on the way to the car.

Ok. Here are your options that will happen next chapter.

1)Skip the first two months of pregnancy and find out the genders.

2)Have Isabella be frightened and ask Candace for advice.

3) suggest a few ideas!

Also, please review what you guys think so far! Thank you for reading.