Relationship

I’m 8 weeks pregnant and my BD has decided to dip on me. He told someone it’s because I have a high school son. He wanted to get me pregnant as we mutually tried. He is 6 years younger than me but knew about my kids before trying to get me pregnant. Now all the sudden he has stopped talking to me. What do I do from here? He won’t respond to anything. Is he giving up his rights? He wants to be sure to be there when the baby is here just apparently not while I’m pregnant.