hey mommies. I need advice... I messages My bd on fb and told him to contact me about child care…

hey mommies. I need advice... I messages My bd on fb and told him to contact me about child care fees. well he messaged me saying I need to contact him so he can take HIS son and see his family. for #1 he's never around, #2 I'm breastfeeding #3 he doesn't care to try and learn anything #4 he drives like an asshole #5 my son does not like him. my thing is I'm afraid he's going to go to court and try and take my son away from me.. he's a deadbeat pretty much. what should I do?