I think I'm ruining my marriage

I've been struggling a lot. I was engaged to my husband, but living at home in a very abusive environment, got kicked out of that house, and bought a house with my then fiancé. We're married for almost a year now. And I'm pregnant with our first. We weren't trying to get pregnant, but she's a happy little accident. I was diagnosed with depression, anxiety, and BPD 6 years ago, and it's sometimes hard for me to see the gray areas in situations. My depression had been in overdrive, and I feel like I'm drowning. Itt's either not a problem at all, or it's a really big freaking problem, and it needs to be dealt with right now. We've hit a bit of a financial hardship, and I noticed my husband seeming a little bit detached. I know that he isn't cheating, and that isn't a concern, but he did tell me that he feels like he can't come talk to me about being stressed because he doesn't want to stress me out more than I already am. On top of that, it's been a difficult pregnancy, I haven't been able to keep house like I want to and balance my classes. The sexual aspect of our relationship is just not there, I have no sexual desire. We have a policy for the bedroom that if BOTH of us don't want to do it, we just don't do it. Consent is a big thing between us. He's said that he doesn't want me to just go along with it when I don't want to do it. But now it's causing a strain on my marriage. I did a little research on getting my drive back and found nothing of use. My BOB isn't even getting any action. I don't know what to do.