so heartbroken

Me and my husband been trying little over a year. gotten some test done everything came out somewhat normal. We were doing ovulation testing etc. We are busy we both work so sex life is limited. now he doesn't want to do anything no test or anything. he won't even take a vitamin. I know he wants kids but he don't wanna do anything to help us. he says I should stop worrying and just let it happen. I would but if it wasn't for lack of sex I would not worry has much. I figured if he really wanted kids he would do at least something. he won't even go see another doc for advice.