Pregnant and feel alone

My boyfriend and I have been bumping heads pretty frequently over the last few weeks. I had a miscarriage recently and am now pregnant again. Admittedly, I am probably more sensitive and stressed out now. There aren’t any major flaws in our relationship. Nobody has cheated, we have the same long term goals, etc. However, he texted me on Sunday asking how I was. I did admit I had been down, mostly because I agreed when he said before that I don’t really trust him. In response he has taken that as an attack (instead of trying to address why I have trust issues with him or building the trust) and now has been ignoring me completely and sleeping on the couch for 2 days. We haven’t exchanged two words. Normally I would force a conversation because I can’t stand unresolved issues in a relationship (and I know this solves nothing!) but I’m becoming exhausted with this cycle. I feel emotionally abandoned by him. I guess I have basically given up. I don’t know what to do anymore.