What could this be?!😐

So i have like egg white feeling discharge. But it’s yellow not super yellow, It came out when i was peeing. I took a boric acid supplement last night, I had sex like 4 days ago idk if this is the way my vagina is cleaning it self out or, the partner I had sex with is my only partner ever and i’m his only partner ever. There is a little itch like not even itches just sometimes tingles down there but idk if it’s just from shaving and being so wet like the irratation, My discharge dosent really smell like that bad but has a sourness to it. Do you guys think I have Bv? #tmi