Me And My Boyfriend Were Playing Around And We Have

Me and my boyfriend were playing around and we have anal sex. He wasn't going in and I said go lower and he did he wasn't close to cumming and he only stuck it in my vagina for about 2 seconds. This was 2,1/2 weeks ago. On the 11, 12, and 13th of this month I had a brown discharge and then this past weekend I had it again and I'm having this sick feeling in my upper abdominal area. CanI be pregnant?