Sex on a Schedule?

My husband and I just started trying to conceive this month and we’re finding it difficult to get in the mood when sex is scheduled on the calendar around my ovulation. It just feels more like another chore than something we both want for pleasure. My husband actually keeps losing his erections and can’t orgasm, so obviously we’re going to have a tough time conceiving at this rate. Also, he’s in his early 30s so it’s not like he has ED. I think it’s just a mental thing because married sex isn’t always novel and exciting.

Has anyone else struggled with this? Advice please!