I found this in the bowels of my computer from June of 2015. Enjoy.
The Fight at the Weasleys
Harry, seven months pregnant and ready to burst, sat grumpily on the couch in the Weasley's sitting room. This was his second pregnancy, and Severus had convinced Healer Kaylee, who had all been too happy to be there for him throughout his second pregnancy, that he needed to be on bed rest. Harry looked around the sitting room again.. or couch rest… Severus had to brew several potions today, and wanted to make sure that someone would watch him. Harry frowned again at the memory of that conversation. "Are you okay Harry dear?" Molly asked, as if sensing his distress, peaking in from the laundry room.
"Are you entirely certain that you don't need help with the folding Molly? I have done this pregnancy thing before, and I'll be fine being up and about for another month."
She smiled at him. "I'll bring it in there so that you can help me. I understand completely. Despite Ronald being my fifth pregnancy Arthur hovered the last four months."
"Thank you Molly," he smiled.
Harry heard the Weasleys enter through the kitchen door, and greet their mother, just as the floo activated, and Severus stepped through the fireplace. "Severus." Harry greeted cordially.
"Harry, are you and Jonathan ready to go?"
Harry raised an eyebrow. "Jonathan isn't her-."
"He was supposed to be with you today." Severus sneered, and both of their irritation at the other from their disagreement that morning raised to the surface.
"I don't need to be on bed rest." Harry cried out as they were getting ready to leave for the Burrow.
"Harry, your Healer-."
"Healer Kaylee knows just as well as I do that I will not need to be on bedrest for another month." Harry frowned at his husband. "Don't think that I don't know what you said to her about me 'falling' and getting 'dizzy'. When you and I both know that the only falling that I've been doing is into bed, and the only time I get dizzy is after a particularly intense orgasm."
"No it's Tuesday and that's Jonathan's day to-."
"This is exactly why you need to be 'babysat', we're having another child, and you already cannot keep track of the son we already have."
Harry was off of the far too comfortable couch far too quickly. "JONATHAN IS WITH HIS AFTER SCHOOL READING GROUP LIKE HE IS EVERY TUESDAY." There was a loud slapping noise that silenced the few that hadn't been silenced by the yelling. "HOW DARE YOU ASSUME THAT MY PREGNANCY WOULD STOP ME FROM TAKING CARE OF JONATHAN. I'VE TAKEN CARE OF HIM JUST FINE BY MYSELF FOR HIS ENTIRE LIFE."
"I would have been there if I had known about him." Harry's husband snarled at him.
"HOW WAS I TO KNOW THAT YOU HEARTLESS BASTARD. YOU TOLD ME TO LEAVE, THAT YOU DIDN'T LOVE ME, WHY SHOULD I HAVE THOUGHT THAT YOU WOULD TREAT OUR SON ANY DIFFERENT."
"WHY DO YOU ALWAYS THROW THAT IN MY FACE?!" Severus yelled back, no longer able to control his temper.
Pregnancy hormones struck, and Harry broke out in sobs. "Why are you yelling at me? It's not my fault. Jonathan's with his teacher, he wasn't supposed to be here right now. Why are you still such a bully." Severus allowed himself a moment to pinch his nose and attempt to calm himself.
He then moved to Harry and wrapped his arms around the swollen waist of his husband. Severus nuzzled Harry's neck, pressing his lips against that one spot that always made the shorter man sigh. "I'm sorry love. Forgive me?"
"Why are you so mad today?" Harry asked him, voice steadying out as the sobs stopped.
Despite knowing that they would probably argue again later, Severus knew that Harry wouldn't want to hear that he was just concerned about him. "An owl flew in through one of the windows in my lab and broke a jar of beetle eyes into one of my cauldrons. I was cleaning up the mess all day."
Harry couldn't hide his snort, or the following chuckles. "Bet you wish you had students to give detention to now." They heard the front door burst open, and then slam shut.
"Hi everybody!" Jonathan cheered, and the soft thump of his backpack hitting the floor near the door was heard, before he ran into the sitting room, not noticing the stunned silence of his aunt and uncles. "Daddy! Papa!" He cried, wrapping his arms around their legs.
Harry covertly wiped the remnants of his tears away, and cast a wandless charm on his face to hide the puffiness. "Hey there baby." He smiled.
Jonathan pushed Severus away, who was on the verge of saying something, when he saw the two tiny hands reach up to grip Harry's stomach. "Hi there Sophie, I read a book about Dinosaurs in class today."
Harry's smile brightened as he placed his hands over Jonathans, moving them to the places where the baby girl had been kicking. "Sophie says Hi."
Jonathan's eyes widened, as they did every time, when he felt the nudge against his hand. "Papa, you have to come and feel this."
Severus couldn't deny the request, and took the step forward he would need to, and placed his hand on Harry's stomach, not aware of the awestruck smile that crossed his face every time that he felt the flutter of his unborn child. The Weasley's who had dared to peak around the corner of the doorway smiled at the family. Knowing that though Harry and Sev had problems, that the look of love that he shared with his husband was genuine, and they were glad that both of them were finally happy.