I have no problem with them wanting a baby right after their getting married. Some people do, and are in the right mindset to do that. It's not as if MishBir have to be solidify their relationship first or anything like that. It's just the idea seemed to be that doing IT is reserved for making babies. I can't! Especially when it comes to MishBir!!
I just have to think ki SR ho gaya hoga already and this is just a way for Mishti to show Abir she is ready for baby and that's what they're showing. Then I can totally get Abir getting romantic because she agreed with him. Now it's not mechanical anymore and I can enjoy when I rewatch.