So, here is my opinion having gone through this "incident" myself, twice...
Based on personal experience, room or no room, listening to the heartbeat off of Arnav's phone or seeing the baby during doctor visits in an ultrasound, would not have resulted this into a different story.
This is a couple who love children immensely (think I have shown that in this story), desperately wanting their own, and when it finally happened a couple of years later, along with the four months with their baby, not a fetus, there is that unconditional love and bond that one does not forgot whether there are reminders or not. They were emotionally connected as soon as she learned she was pregnant. Yes it took them two years to get here, but this is a fact, everyone is different, every situation is different... this is only one scenario.
Think about it from the standpoint where millions of mothers and fathers go through this, its heart wrenching. The pain is no less whatever the circumstance is. Professional or personal advice given by others, in my eyes can not compare to what that couple feels. No one can relate to the couple but themselves, as individuals.