My LO is 8 months old. We take a developmental play-group class, and I've noticed that LO is "different" from the other babies (who are all around his age). They sit on their mothers' laps and smile at the fun songs that are sung, etc. My LO gets a very sullen look on his face and bucks backwards so that he can lie on his back, almost like he wants to "escape" from what's going on around him. (My LO smiles and giggles when we're at home (though he's a pretty "serious" baby)).
After class, I was talking with the instructor of the developmental play-group and she suggested an Early Intervention evaluation based on LO's lack of engagement in class. LO's grandfather has Asperger's and ASD is something about which I worry.
Should I seek the evaluation now or wait until LO is older? Also, would LO's behavior worry you or am I over-thinking this?