Sex3/5 spotting brown clots and bleeding for 2 weeks thought it was my "." then it stopped for 2 days sex3/18 now small brown whitish & pink last<hour?

Bleeding & Discharge: Without knowing your normal cycle length, and previous encounters before the 5th, it is a little difficult to be sure, but it sounds like there is a chance you might be pregnant. A home pregnancy test should be positive by the time of your next expected period, if that is the case. If not, you should call your gynecologist and discuss this sudden change in your cycles.