Am I Pregnant ???!!!?

First of all I never have had sex before, and I know you can't get pregnant without having sex but me and my boyfriend play around like he fingers me but i always make sure his hands are clean, this month I have had my reg. period then 4 days later had another but it was a lil shorter, then I had this dark brown discharge, I have been feeling nauseated and have had a headache for a couple days now .. I went to the doctor today but I don't know what she really said, she really didn't mention anything about pregnancy, but I'm so worried and freaking out .. HELP please :'(