33 weeks and thinking about separating from my husband

My husband cheated on for a few months before I found out. I stayed (no judgment or comments on me staying please). I ended up getting pregnant the night/or the following morning I found out he cheated (we had some amazing break up sex). Since then I haven’t been able to trust him. I feel like a psycho stalker half the time. A lot of things are messed up in our marriage and I feel like they are only getting worse. I don’t want to divorce my husband I just want things to work out for us and for us to be happy again. But I think I want to take a break for a while.

I don’t know if I should wait the next few weeks and wait till after we have the baby or if I should do it now. I’m just so lost and confused