Don’t know what to do

Me and my ex have dated for almost 2 years I got pregnant he was the one who wanted a kid now that I’m pregnant he left me a few weeks ago told me I was “holding him back from having fun” and that I was apparently crazy because he was texting females behind my back and I asked him to just be honest with me about things and he lied so somehow me getting mad makes me crazy I think it’s extremely disrespectful to talk to other females behind your girlfriend/wife’s back. I don’t know what to do. I asked the other day if he still wanted the baby now he’s not even claiming it as his and told me he no longer loved me? That’s wouldn’t make sense how could you fall out of love with someone in a week. And he told me “ your worthless and I cheated the whole time” breaks my heart