Leaving him

I have been having issues with my SO for a while now, I am 9 wks preggo and I'm starting to realize that we are never going to see eye to eye. We try to make it work but if just escalates more and more each time. Anything I say he takes the wrong way and makes me feel like crap and I've just about had it. Not sure if I'm just needing to vent or need some advice but I don't think that my heart is in it like it used to be. I just want to pack up my things and just disappear.