HELP/ What it could be?

hey girls ! so i’ve always had yellow discharge sometimes even before I had sex for the first time.

i’ve only had sex for a few times these past years.. and of course I had unprotected sex sometimes.. it happened 2 times.

i’m back with the birth control and also i’m really clean person.

but the last time I checked myself was 2017.

I’m worried it could be BV or something else..

i’m not feeling burn or itchy. the only thing is the yellow discharge sometimes.. and sometimes is a bit green , and no strong odor.