I just got my period last August 1. Then i had unprotected sex (really fast. Like he went in and pulled out right away) 8 days after. Then 3 days after, we had unprotected sex again really fast (he went in and went out twice.) no bleeding, nothing painful at all. 4 days after, last night, we didn't have sex but he fingered me. The morning after, there was a little brown discharge on my underwear. Again, nothing was painful at all. What could this mean?