Odor after becoming active

So it’s been smelling worse then usual down there. Like its not gonna smell great obviously but the smell is just bad now. I’ve recently become sexually active again , se protection. And It’s been smelling bad and I’m getting sharp pains as if I were ovulating but I’m not. Could it be cause of rough sex?

Btw I checked my PH using a Urine dipstick test & it’s 7 its normal