How to deal with low sex drive??

Hi, I use to have what I would assume a normal sex drive, but for the last few months it's like I don't care. I want to be with my husband, but it seems like every time we try to do something I can't get anything out of it. I'm still currently on birth control, and am wondering if that could be the problem? I've noticed during my period I'm more 'excitable' but not sure if it's just the hormones around that time of the month. Anyone else have this problem? Or any advice on how to improve!!