we had intercourse i bled and i'm having pink discharge .

hello , i am 18 years old, i am sexually active, when my boyfriend and i have sex it is normal, however on june 4th when we had intercourse i bled, it is not time for my period for another 2 weeks, the bleeding was very mild and went away, today is june 6th and i am having a mild light pink discharge, i have made an app. to see my gyno. but does anyone have any insight as to what this may be?, i am not on birth control so i know it's not breakthrough bleeding.