Not feeling my husband these days

My husband and I have been trying to conceive for 4 years! We finally got pregnant in July but then miscarried. Now I’m obsessed with trying to get pregnant. I’m taking the ovulation sticks regularly, but the issue is my husband! He doesn’t seem to want to have sex anymore and he says he’s not in the mood. This is my ovulation week and he doesn’t even want to try. It’s very upsetting and I don’t know what else to do. I’m not getting any younger, I’m 37! I’m just not feeling him right now. I’m confused.