Sometimes when one is on an injectable or oral steroid
, these discharges happen.
However, you need to substantiate your query whether or not it is an STD
with a detailed sexual history to help you better.
Perhaps it is best to go across to a gynecologist & get a vaginal swab tested.
My clinical hunch though is that it all seems fine especiaally as you are asymptomatic symptoms -wise.
Good Luck & Do please practice safe sex!
Dr Praveen Rodrigues MD