My boy is born at 38 week. He is healthy overall, gained 2kg in 2 months, he is looking to my eyes when i talk to him 90% of time, he is reacting on sounds, looking at toys, when we talk to him he is having some reactions like moving arms and legs with excitement, making O with mouth, cooing, etc, but he is still not smiling to us.
He is smiling when sleeping or eating sometimes, but I cannot bring his social smile yet as a reaction to something i do or talk.
should I be concerned because I read many articles that says that baby should start laughing at 6 weeks, and by 8 weeks showing even signs of shame in front of unknown people.
thanks