I'm back on birth control and I am spotting.

So I went on birth control (depo provera) when i was 13. and i was on it until i was about 19 (21 now) and i had zero issues and almost zero side effects, but i ended up going off of it for two years just to experience a period because it had been so long not having one. ANYWAYS. i ended up getting pregnant within those two years i was off of it and i decided to have an abortion. after that i went back onto depo because i had always had a good experience with it and my period would stop completely while on it. Fast forward to now. i recently had sex with a new partner who gave me chlamydia and i was treated for it. but i am still experiencing light to heavy bleeding after sex, and just day to day in general. i have no idea if this is my birth control or a possible side effect of chlamydia or maybe i still have it ?? I feel like i SMELL way more than i normally would before i contracted chlamydia and i honestly just need to hear some similar experiences however they may relate to me. Love u girlies please lemme get some answers or solidarity or ANYTHING