Period

I haven’t had my period for 48 days now and idk what that means. My Vagina feels weird and it feels painful. I know I can’t be possible pregnant because, last time I had a sexual relationship was 4 months ago. I don’t know what to do and I can’t go to the doctors because, theirs a waiting list so i can’t be attended until May so I need answers or though on this. My friends believe it’s a UTI but, I think there’s more to it.