help any input

I feel all alone I don't know what to do. My husband and I been TTC for almost a year. He told me a couple times that he admitted that he used meth. Now he said it doesn't feel the same and since him used it he wants to go for like 6-10 hours then for like 2 days and now our sex life is like once or twice a month. We've been together for 10 years but I don't how to get him in the mood but when I try something he says I'm not in the mood or I'm too tired. I'm 30 and he's 37 so it's hard me cause I can go every 3 days but last month was only twice and we both want kids but when people ask he said we've tired but don't know why it's not working I'm like hello sometimes once or twice a month doesn't work. I just feel like giving up. Please don't comment anything negative and we've talked about it just feel all alone lately. Thanks for listening and baby dust and blessings to your baby/Ives coming soon!!!