Abusive?

My boyfriend of 6 years has recently been acting shady. He logs out of all of his social media when he's around me, and he will laugh in my face if I accuse him of cheating. I asked to see his phone and he wouldn't let me so I grabbed it and he snatched it back and pushed me extra hard into the wall. (Mind you he knows it's possible I'm pregnant). Is calling the cops wrong in this situation?! His family didn't do anything about it and they're going on his side, but he shouldn't have ever pushed me into the wall over that. I don't wanna make it seem like it's my fault. 
EDIT: I feel like I'm gonna lose my baby!!! I'm getting bad pains in my stomach and lower abdomen now.... Lord, everyone please pray for me!!