WHAT TYPE OF STD COULD THIS BE?

A couple of weeks ago I had unprotected sex and I’ve recently found a hard bump on my vag (not the inside or the lip) but on my mons pubis area. (It is definitely not an ingrown hair) Today I found another one on my bikini line. Also my vag discharge is stained yellow on my underwear, I am experiencing a little bit of itching. Has anybody else experienced this? What type of STD could this be?