Hi guys, I need some advice here regarding my child. My son is currently 9 months old. He have the following behaviour

1. Finger flap occasionally
2. Does not respond to us when we call his name out. But when he is not in focus on his toys, he will respond to us when we call his name out.
3. Doesn't look at us in the eyes sometimes
4. Does giggles when making funny face to him.

Should I be worried that he might have the autism?

I talked to my paed, he said can't check now. Hv to wait till he is one years old..