Pregnancy and Marriage Advice

I am currently 25 weeks pregnant with a baby boy, and ever since I found out I was pregnant I have ZERO sex drive. My husband and I before now would have sex like 2 times a day without problem, but now I am just uninterested in sex.

I love him with all my heart, he is the only man I want to spend my life with.. but I feel like I'm burdening him at this point.. him having to be shot down again and again for sex..

I feel like he is distancing from me.. he always calls me beautiful and loves on him but I feel like I'm not satisfying him because of this, and that I'm boring him now..

I feel sad and like he is starting to look at me almost like a roommate not a wife.. it's really depressing actually and he hasn't even done anything to make me feel this way..

What did you do to help your sex drive? Or at least not feel like such a turd during pregnancy? This is just venting I guess..