Boyfriend troubles

So I’ve been with my boyfriend for a year and we had a great sex life in the beginning like three times a week. We moved in together four months ago and we barely have sex. I don’t want to do it either though, and I don’t crave it. We only have sex when I get off my period bc that’s when I’m the horniest and then after it just goes back to not doing it at all. I don’t know what’s wrong with me? What are some things that can get me in the mood?