Husband doesn’t want sex 😔

Okay so the whole time my husband and I have been together (5 years) we’ve always had an amazing, spontaneous sex life. Like couldn’t keep our hands off each other. Well then we went through infertility treatments and sex felt more like a job rather than us being us. After finally becoming pregnant I thought our sex life would go back to normal but here we are and I’m 21 weeks and I could probably count on my hands how many times we’ve had sex in the past 5 months. I try anything and everything but he always has some kind of excuse to get out of having sex. I don’t know what changed and when I ask him he says nothing has changed.

But even the times that we do have sex it’s nothing like it used to be. I’m so frustrated and confused and he won’t talk to me about it because to him nothing has changed.