"Congratulations, you should order more blue than pink. There is a high percentage that it's gonna be a boy", Will informed the couple, smiling at his brother and his sister-in-law.

Fascinated Jay looked at the screen, staring at the little body that moved like it wanted to greet his parents.

"That's good news. You wouldn't have survived a girl, esepcially when it's a copy of me", Erin joked, gentely stroking her skin, before both bursted into laughter.

"4 months in your tummy and already a Halstead. Look at these fingers and toes. He totally looks like you."

"Doesn't help if he shares the character with me", Lindsay joked smiling at the screen.

"Healthy heart beat. No anomalies. Couldn't be happier to meet my nephew", Will explained, cleaning the ultrasound fluid from Erins stomach.

"Enjoy the upcoming weeks. It's never like this again. Especially the nights", Dr. Halstead informed the future parents, saying good bye to each other.

"I guess, someone is happy now", Erin smiled, sharing butterfly kisses with Jay when both sat in the car on their way to the station.

Jay carried her bag when they entered the building, both greeting Platt with a smile.

"It's a boy."

She rolled her eyes, but pulled Erin in a hug.

"Oh man, poor Erin. This is gonna be a rough time. I prayed for a girl", she twinkled but finally stopped joking.

"Don't take it too serious. I was kidding. Hope he is okay."

"Indeed, he is", Erin smiled waving with the ultrasound photo when she recognized Voight taking the stairs.

"Look at that, grandpa", she pointed at the picture , smiling as she did when she met Santa Clause for the first time.

Hank said nothing, just stared at the photo, smiling proudly.

"Good job", he padded on Halsteads shoulder, pointing at his office.

"Can I talk to you for a minute?"

"Sure", he whispered, already anxious because of Voights raspy voice.

He shared irritated glances with Erin who lifted and lowered her shoulders.

"I'll be right back", he whispered into her ear, leaving the grip of his hand.

Quickly Jay followed Voight into his office.

Considering Hanks face his boss wasn't in a good mood.

"Sit down."

Jay followed the order.

Hank folded his hands when his face started to relax.

"Listen, I'm really happy for you and Erin and I will support you no matter what. But I want you to be a responsible father to that kid and I want you to be a good one. Even if you split up one day and even if there will be a time when you would stop loving her. Promise me that, okay?"

"Sure. Although I don't see why we should end our relationship. I love Erin like I never loved someone else before."

"I know. But raising a kid is something different. This boy will show you the darkest and best parts of yourself at the same time. There is no relationship that is out of conflicts while raising a child. And don't make the same mistakes like I did. I wasn't around that much after Justin was born. Most oft he time my wife raised him alone, so I couldn't give him what he would have needed the most. A father that taught him rules and dignity. Since Erin won't stay at home for a year, I started thinking about a solution that would be suitable for both of you. How about sharing the time off? Maybe Erin could stay at home for 6 months after the baby is born and you would take the rest of the year. It's your chance, Jay. You won't get another one. If he is out of diapers for once you might be regret it."

Halstead looked at Voight with wide eyes.

"I don't know. Can I sleep on it?"

"Sure, take your time."

He got up from his chair, hesitated but finally hugged Voight.

"Sarge, I really appreciate what you're doing."

Voight gave him a smile, before he went to the door, ready to deliver the news to Erin…