Low libido - help πŸ˜­πŸ˜‚

Help!I haven't had sex in absolute weeks, maybe more than a month. I am 16 weeks pregnant and just have no sex drive at all. I feel sorry for my other half. He tries and when I say I am not in the mood he doesn't get upset. He is patient. I just feel so bad. What can I do? πŸ™„