Relationship issues

Having a really hard time lately caring about my relationship. Were in the middle of a LOT. His dad just passed away, my stepdad tragically passed in January, we close on our first home together in a week and a half. His sister has been a NIGHTMARE and his family has caused us both so much stress. I’m 6 months pregnant, and have a history of mental health struggles - anxiety and depression. I’ve been off my regular meds - Zoloft and lamotrigine since I found out I was pregnant. OB put me back on a low dose of lamotrigine, doesn’t seem to be helping. He has been driving me absolutely insane analyzing every little interaction we have and him saying I’m being “aggressive”. I think he’s too sensitive tbh. I’m just trying to get thru each day with no stress and feels like he has no understanding of that bc he’s adding to the stress. I’m at a 10 most days and just want to be left alone. Waiting for the talk to come up that we haven’t been intimate in a week and that’ll be the next problem to add to the problem list. I just want to run away. Idk if anyone can even help but I need to rant. I just don’t care about our relationship right now. I want out.but also then I’ll reflect when he’s at work, and I don’t want out. He just annoys the f out of me.