Me and my boyfriend had unprotected sex on january 12th a couple days later i had pink discharge now going on for almost 2 weeks i've been on and off ?

STD check needed: Colored discharge (yellow, green, pink, etc) suggests infection, including STDs like gonorrhea or chlamydia. Possibly a vaginal infection like trichomonas or bacterial vaginosis, but less likely unless also strong odor. Get examined and tested ASAP, either with your doctor, your local health department STD clinic, or a reproductive health clinic like Planned Parenthood. BF should be checked too.