I hate sex, pregnant or not

Idk what’s wrong with me. I’m 29 and I hate having sex. I used to love it but somewhere along the line it became so unnecessary to me. I dread it every single time even though I try to make myself do it once a week or so for my husbands sake. I just don’t find it pleasurable at all. I was okay to have sex when we wanted to have a baby but now that I’m pregnant I’m over it again. Is this just me?!