Feeling uncomfortable with my sexuality

I've identified as straight my entire life, but I keep going through phases where I'm more attracted to women and then all of a sudden Im not. I've never been with a woman as I'm not even sure how to approach that and now Im married so I can't explore it. When I go through these phases suddenly my sex life with my husband just drops off and is non existent its almost like a switch where suddenly Im attracted to one and not the other. Im honestly annoyed I really just wanna be straight but I think that makes me bisexual? Does anyone have any experience with this? I don't have any friends I could talk to about this because Im afraid they'd think of me differently 😞