What is wrong with me 😩

I’m 22 weeks and I feel like a pos. I don’t know why but I can’t stand my husband right now. He really is great to me and he is super stoked for this baby. I don’t want to have sex with him ever and pretty much cringe when he touches me. He gets on my nerves easily and I snap a lot. Why can’t I be nicer? I really try so hard to be nice ughhhh