https://deadline.com/2018/07/big-bang-theory-comic-con-kunal-nayyar-cbs-steve-holland-1202430387/

At the Big Bang writers' room Comic-Con panel -- which featured a surprise visit from Kumal Nayyar and Mayim Bialik -- it was revealed that after four episodes written in Season 12, there are no plans yet for Sheldon and Amy to have a baby. The panel also revealed that Kathy Bates and Teller of Penn & Teller will return as Amy's parents and that a grown-up version of Sheldon's Young Sheldon childhood friend Tam Nguyen will also make an appearance next season.

I think it's enough that Sheldon and Amy have "coitused" and are now married.

We have the Wolowitzes and their off camera babies -- I think that's enough for now.

Maybe on the final episode, Amy can announce her pregnancy.

They only got married because that cute profession was hitting on Sheldon. Im not surprised that kids aren't part of the picture yet.