About 5 nights ago, me and my boyfriend had sex. 3 days later there was a very light pink color when I wiped, not in my underwear. That night he fingered me and the next morning I went to the bathroom and there was a brownish mixed with white discharge in my underwear. What can this mean? I'm not sure if it means pregnancy because I think its too early for implantation bleeding, but I'm still not sure.. im just really confused.

Is it anywhere near your time of the month? Discharge is pretty normal. Unless it becomes cottage cheese like or you notice any unusual smells. If you miss your next expected period, I would take a pregnancy test. Any time you have sex there is always some chance of pregnancy. Using protection, even multiple forms, decreases your chances. But the only 100% effective way to avoid pregnancy is abstinence.