Hygienic tips

Hello!!! Sooo my boyfriend and I began having intercourse about a month or so ago. I noticed that my smell down there changed a bit but then went back to normal. Recently about two maybe three weeks ago I noticed it’s gotten a bit weird again. I was wondering if it was normal? I suspect my PH balance is possibly off balanced.

I’m wondering what tips or tricks you have to keep your vagina nice, healthy and smelling nice. (I’m aware vaginas are supposed to have a smell I’m not saying I want it to smell like roses I know that’s not possible)