Husband not into it

Hi guys so my husband and I were meant to be ttc which we started last month. I’m just so scared that it will take us long to conceive so I’ve been tracking ovulation this month and trying to bd as much as possible but he’s just told me he’s not feeling it and he wants to try but only when he feels like it. I just don’t know what to do. Has anyone else been on the same boat? If I had to stop having sex so much which days are most essential to get pregnant?