Help!

Okay, I am 18 weeks pregnant & have been having an awkward smell coming from my vagina for a few weeks now. I am a very clean person, so this makes me very uncomfortable. I have tried different cleansers thinking it might help, but no luck. Any moms out there with some advice as to what I should do? I hate calling the doctor for him to just say it's normal... I can't take this smell. It's around constantly, right before shower, right after shower, during sex, after sex, it haunts me!!!!