In the meantime, at Phineas's small home not too far from his sister's place of residence, Phineas looked at the phone in his hand, once again getting voicemail.

"What's wrong Phineas?" Sienna inquired, as she came out of their daughter's room.

"I was trying to call Ferb, but my calls keep going to voicemail," Phineas replied.

"Why are you trying to get ahold of him anyways?" Sienna asked.

" Well, I want to ask him something," Phineas returned.

"Like?" Sienna prompted.

"Well, Gretchen's pregnant," Phineas stated.

"She carries well for such a small person," Sienna remarked.

"I wanted to know if Ferb had any questions for me. Seeing as I've gone through the fatherhood things with you and Lillian," Phineas continued.

"Phineas leave them be," Sienna replied.

"But," Phineas tried protesting.

"I'm sure Lawrence and Mr. Weiss are more than capable of answering Ferb's questions," Sienna pointed out.

"I'm not sure if Dad or Mr. Weiss-" Phineas started.

"Phineas..." Sienna sighed.

"Sienna, Ferb's my brother. No one can read him like I can. He's not going to ask, he's just not," Phineas replied stubbornly.

"You're on one of your stubborn streaks again aren't you?" Sienna asked.

"I'm not stubborn, Ferb's the stubborn one," Phineas said.

Sienna gave him a 'really?' look.

"I'm not stubborn!" Phineas nearly shouted.

Sienna glanced in the direction of the girl's room, "Now I know where Lillian gets her hard hardheadedness."

Phineas sighed, "Sienna..."

"Maybe you could exchange tips," Sienna suggested.

"What kind of tips?" Phineas asked, confused.

"Fatherhood tips for marriage tips," Sienna replied, pointing out the obvious fact that Ferb was more experienced in the area of marriage while Phineas had more experience in the area of being a father.

"Right... if I can ever get him on the line. Maybe I should just go over there," Phineas mused.

"It's getting late Phineas, besides, they might just be out," Sienna tried dissuading her fiancée.

Phineas laughed, "Ferb? Go out? That's a good one. He's not likely to go out when he's got to get up in the morning."

"Weren't they able to get away every New Year's for the past three years, with no one noticing?" Sienna inquired, pointing out a fact.

"Well yes," Phineas admitted.

"Until Lillian had that night terror," Sienna continued.

"They're not likely to go out when they have to work," Phineas replied.

"Gretchen had said that she had to work on New Years because she didn't have enough seniority," Sienna commented.

"I don't know," Phineas said, shrugging.

"So obviously, it was Ferb's doing that got her out of work. They're probably off somewhere enjoying each other's company before the baby arrives," Sienna remarked.

"Where would Ferb take her then?" Phineas asked.

"You're asking the wrong person," Sienna informed him.

"Then who am I supposed to ask?" Phineas inquired.

"Phineas, I don't know either of them very well. The first time you even introduced me to them was at their wedding. Maybe the person Gretchen was talking to knows," Sienna pointed out.

"Gretchen talked to several people, her parents, my parents, her older brother, some of her old troop mates," Phineas replied, naming off just a few people he remembered her talking to before spending the night dancing with Ferb.

Sienna vaguely recalled, "She had black hair, about half a foot taller than her."

Phineas brightened, "Izzy! Of course, She'll know, she's been Gretchen's best friend for years."

"Isn't she the one who-" Sienna placed the name, or rather nickname, quickly.

"Broke my heart? Yes, but we're still good friends..." Phineas interrupted then pulled up Isabella's number.

Sienna was unsure how to respond, "Okay then."

Phineas hit the 'send' button and Isabella picked up promptly, "Hey, Izzy, It's Phin," he paused to listen, "Just great, listen, I was wondering if you knew if Ferb and Gretchen were in town?" a listening pause, "Of course I tried calling, I keep getting voicemail," he paused again, "Well thanks anyway. Talk to you later. Bye."

"No luck?" Sienna asked.

"The girls got together the other day. Gretchen didn't mention anything about leaving town," Phineas replied.

"Maybe Ferb sprang it on her?" Sienna suggested.

"Ferb is one of the least spontaneous guys around. He plans everything, he's almost as bad as Baljeet," Phineas replied.

"I doubt that Phineas," Sienna returned.

"What do you mean?" Phineas asked.

"I don't know, he seemed to be pretty spontaneous a while back. Maybe he's more spontaneous with his wife," Sienna answered.

"He's always had his moments," Phineas mused aloud.

"You're just saying he's not you," Sienna pointed out.

"Well, yeah. Ferb and I have been brothers since we were four-years-old and I can count the instances of spontaneity on one hand," Phineas replied.

"You're probably forgetting a few times," Sienna remarked.

"He might have tried, but I knew he was planning something," Phineas returned.

"How?" Sienna asked.

"He always gets a little glint in his eyes when he's planning something," Phineas explained.

"Well you get a wild glint in your eyes when-" Sienna began.

"Maybe I should just use the teleporter app," Phineas mused.

"They might be having alone time," Sienna protested.

"HA! Ferb's so proper it's not funny. Besides, Gretchen's pregnant," Phineas scoffed at the idea.

Sienna crossed her arms over her chest, giving him a stern look.

"Should I just teleport a note to him then?" Phineas asked sheepishly.

"That would be less intrusive, though I don't think it's so urgent it can't wait until tomorrow," Sienna replied.

"I guess..." Phineas said.

"Phineas, remember last month?" Sienna reminded him.

"What about it?" Phineas asked.

"I don't think it's a good idea for you to get him worked up like that," Sienna said.

"I suppose you're right," Phineas replied.

"You know I'm right, this time," Sienna returned.

"He's just gotten so secretive lately," Phineas nearly whined.

"Maybe he's trying to keep part of his life private. You wouldn't want everyone to know about," Sienna began only to be cut off.

"Okay, I see your point," Phineas interjected.

"So we just leave them be," Sienna said firmly.

"He's going to be my best man...Have you decided on your Maid of Honor?" Phineas asked.

"Not yet," Sienna sighed.

"I guess you don't want Gretchen," Phineas remarked.

Sienna became uncomfortable, "She seems like a wonderful person, but I don't know her. I should probably just ask my sister."

Phineas was not expecting that answer, "Oh, okay. I'm sure Ferb will be okay with that."

"Do you want me to ask Gretchen?" Sienna asked.

"You can ask whoever you wish..." Phineas replied evasively.

"You're getting an idea," Sienna noted.

"Maybe you two should go out for a day, just the two of you. Get to know each other better," Phineas suggested.

"Do you really think she would be okay with that? Because I know she's busy with work," Sienna replied.

"Ask her, I'm sure she'll want to spend time with you," Phineas said.

"How well do you know her?" Sienna inquired.

Phineas faltered, "Uh, well... I know she's great at organizing things."

"Phineas..." Sienna warned.

"I don't know her that well, okay? I've only gotten to know her because of Ferb," Phineas admitted.

Sienna's jaw dropped, Phineas knew almost everything about Jeremy, but Gretchen was a mystery to him? "You seriously don't know your sister-in-law that well?"

"I think the most she had ever spoken in front of me was when we were ten and made a giant bubble...Couldn't understand her the first time she said something," Phineas explained.

"What do you mean?" Sienna asked.

"Isabella said that she used an overly complex way stating something that could use simpler words," Phineas said.

"So, over the years you never sat down to talk to her?" Sienna asked.

Phineas replied sadly, "No. The most time we spent together was the summer Ferb was injured, even that was... strange."

"What do you mean 'strange'?" Sienna asked.

"I thought I loved her," Phineas answered.

"Wait, what?" Sienna blurted out.

"I thought I loved her. I was dating Izzy at the time. After Ferb was taken to the hospital... Her and dad had a talk.. And when mom hugged her, she just went kinda limp... Before she left, I kissed her," Phineas explained.

"Is that why you thought you loved her?" Sienna inquired.

"I wanted to kiss her again..." Phineas mumbled.

Sienna was puzzled, "What did she think?"

"I'm not sure. I knew she was in love with Ferb. She wasn't happy that I kissed her. In fact I could have sworn she was gonna slap me," Phineas admitted.

"They've got a strong relationship," Sienna noted.

Phineas reflected on his thoughts, "They've always had a strong relationship."

"They've been together a long time," Sienna noted again.

"Yes... I was somewhat jealous at how easy their relationship was," Phineas admitted.

"Are you still?" Sienna asked.

"No," Phineas replied, noting the few times the couple had gotten into debates in front of him.

Sienna smiled, "That's good," she said before kissing him.

A short time later, at the Fletcher household, Ferb and Gretchen were in bed, curled up together.

"How are you feeling now?" Ferb asked softly.

Gretchen let out a contented sigh, "Better."

Ferb kissed her shoulder, then adjusted covers over top.

Gretchen snuggled into him, enjoying the closeness.

Ferb pulled her closer.

The next morning, Ferb was on the phone as Gretchen woke up.

"What was it that you wanted Phin?" Ferb was saying, as he sat on the edge of the bed.

Gretchen crawled over and hugged Ferb from behind, resting her head on his back.

Ferb smiled then spoke into the phone, "I was busy," a brief pause as Phineas spoke, "I don't have to answer that," a listening pause, "I can meet you for lunch today," Ferb paused again, "No, I'm on-site." Another listening pause, "See you later, bye," then Ferb hung up.

"Morning dear," Gretchen greeted.

"Morning sweetheart," Ferb returned, twisting around to look at her.

"What did Phineas want?" She asked.

"He wants to meet up for lunch," Ferb replied.

"Why?" Gretchen inquired.

"I have no idea," Ferb answered.

"Can I book lunch with you later this week?" Gretchen asked.

Ferb smirked, "I'll check my schedule."

Gretchen became worried, "I don't ask very often."

Ferb kissed her forehead, "I know, I've got a few things on the schedule this week and next. I'll ring you from work."

"Okay," Gretchen replied.

"I'm sure we can do lunch," Ferb assured her.

"Okay," Gretchen repeated.

"If we can't, I can always," Ferb started.

"It's all right Ferb," Gretchen cut him off.

"I know I can get out early on Thursday. If we can't get together for lunch, how about dinner out?" Ferb said.

Gretchen smiled, "That might be better, we'd be less rushed."

"Okay, it's a date," Ferb replied.

"You should be getting ready," she pointed out softly.

Ferb sighed, he really didn't want to leave, "I know."

"I'll put on some coffee," Gretchen said, climbing out of bed.

The phone rang : 'P. Flynn' was on the call display.

Ferb glanced at the display as he headed for the closet, "It's Phineas again, can you get that? I've got to get ready."

Gretchen nodded, and answered phone, "Morning Phineas," She paused slightly, "Sienna? Good morning," a listening pause, "Uh, sure," she paused again, "Anytime, I'm not working at the moment," a final pause, "See you then," she said then disconnected the call.

"What did Phineas say?" Ferb asked, poking his head out of the closet.

Gretchen was slightly confused as she replied, "It was Sienna."

Ferb quirked an eyebrow, "Oh?"

"She wants to get together," Gretchen replied.

"That's...unusual," Ferb said slowly.

"It can't hurt anything," Gretchen said with a shrug.

"Hmm..." Ferb hummed.

"What is it Ferb?" Gretchen asked.

"Phineas probably thinks that you two should get to know each other better," Ferb remarked, stepping out of the closet, fully dressed.

Gretchen scoffed, "Don't be absurd. We get together for family dinners all the time."

"But you don't speak as much during those," Ferb pointed out.

Gretchen shrugged.

"Although you do have Candace and Mum whose talks can get out of control," Ferb continued.

Gretchen snickered.

"Please be careful. I don't want a phone call stating you've passed out," Ferb remarked.

"Ferb, that's not happened in months, and you know that," Gretchen replied, as she pointed out a fact.

"I worry about you," Ferb commented.

"I know you do," Gretchen said quietly.

Ferb smiled.

"I've been taking my vitamins and the iron supplements," Gretchen said.

"And I've made sure that no one is able to set off your triggers," Ferb said softly, pulling her into his arms.

"You have?" Gretchen asked, eyebrows raised.

"I've asked our families to keep conversations light," Ferb answered.

"I'm not fragile," Gretchen snipped.

Ferb rested one hand on her cheek and the other on her waist, "You're delicate."

Gretchen raised an eyebrow in reply.

Ferb smirked at her, "But you can be a mischievous little minx."

"You should know," Gretchen replied coyly.

"If last night was any indication," Ferb replied smirking.

"Careful Mister Fletcher," Gretchen warned.

Ferb kissed her on the cheek, then quickly behind her ear, "Remember that for later."

Gretchen flushed red, "You get ready for work."

Ferb smirked, "Have fun with your day out."

"You don't let that one co-worker of yours get you down," Gretchen replied as the pair headed down the stairs.

"I don't," Ferb replied.

"Do you want anything special for dinner?" Gretchen asked.

Ferb replied, tying his tie as they walked into the kitchen, "Either fish or chicken; if there's any in the freezer."

"I think we've got some, if not I'll pick some up while I'm out," Gretchen replied.

"Okay," Ferb replied.

"This is going to be an interesting day," Gretchen sighed as she put the coffee into the coffee maker.

"I hope you enjoy yourself," Ferb said, pulling out his coffee mug.

"I hope so too," Gretchen said, as the coffee began filtering into the pot.

Ferb left for work after breakfast. Gretchen finished her breakfast and the dishes.

Gretchen sat in rocking chair and rubbed her abdomen, "I need you to cooperate for me today. I'm going out shopping, then having lunch with your Auntie Sienna," she paused, and the baby kicked, "Not too hard, I don't want to cut my day short," Gretchen got up and got ready to go out.