I started dating an ex girlfriend and had a question regarding vaginal odor. When we had sex last year when we first dated and now, a year later, I notice a strong odor that gets even more noticeable with prolonged penetration. It's so noticeable that even after sex, and when we were driving to get food one time, I could vaguely smell it. I'm worried it could be STD related. She told me she recently had a miscarriage and that she was tested for a lot of things over that. I dont want to make her self conscious about her smelling down there but I feel like this needs to get resolved. Does anyone have any input?