Post Intercourse bleeding

Hi fabulous sisters!

So I haven’t had sex in a while but recently started dating someone and we were intimate a couple of times. I am on birth control (pill) and take it as directed. We have had both sex with and without a condom and for some reason I still bleed a day after we have sex. Not sure why and my pH is off bc I do have an odor. I do take hygiene seriously and am not sure why I have such a strong odor. However I have only noticed this after having sexual with him.

Hope I can get some good feedback!