I’m at a complete loss...

So my son is going to be 4 in October. I am also pregnant and due in October. My son started speech therapy about a month ago due to him not using full sentences and not saying the few words he did use, correctly. He’s such a sweet kid at home. So loving and caring. So helpful but very rebellious.

His teacher at daycare told me today that she has been having major behavior issues with him lately. Biting and hitting other kids and hitting the teachers. This is the first time I’m ever hearing of these incidents. She also asked me if he has been evaluated for autism or Asperger syndrome. I’ve thought this could be a possibility in the past, but his speech therapist hasn’t said anything to me about her opinion on the matter yet. I’m at such a loss of what to do. I know I need to get him evaluated. Im just so unsure why his behavior seems to be so night and day between home and daycare.