Tmi. Gross i know.

So this is probably way to tmi but i need some advice. Last weekend me and this guy were messing around all he did was finger me. We wanted to have sex but I freaked out. No sex even happend.

Heres the tmi. Im experiencing very very thick white discharge there's really not an odor and im itching aswell. Is there a chance i could have got an STI?