Why do I always smell stronger down there after unprotected sex??? It's not exactly fishy, not bready etc. Just a stronger/heightened odor of my normal lady parts odor??? (Apologies for lack of a better description!!)

Usually lasts a good 5 days to a week!!! It's not a yeast infection or STD. I have no other symptoms of such. Anyone else with this?? Apologies if this post sounds stupid!