Small half pea sized flesh colored hard bump on labia minora no itch or odor had unprotected sex 2 weeks ago what could this be? I've had it for 6days

See your Ob Gyn. Could be a number of things. A skin tag, mole, inclusion cyst, condyloma (wart), moluscum contaigiosum (a transient infection caused by a pox virus) to name a few. These are treatable so see your doctor.
Vaginal cyst. This could be many things -- because it is relatively asymptomatic, it could be a Bartholin's cyst. However, due the fact that you had unprotected sex, a full gynecologic workup and evaluation is necessary -- make an appointment with your physician.