My period ended 3 days ago and after that I noticed a smell down there and it’s bad.. idk what is it, it’s there even after I shower. The only time it’s ever smelt this bad was after I gave birth.

Recent changes that may have caused this:

Started using Tampax tampons (usually use generic walmart brand)

Stopped using birth control 2 months ago

Ran out of Dove bar soap so have i been using Dove body wash

any thoughts? has this happened to anyone else?