In September I got my period on the 24th .... Then I had a 4 day light period thing 2 weeks later...it wasn't heavy... But it was light to the point that I would only need 1 pad a day if I didn't change it..... But it wasn't really blood..it had some blood but most of it was almost blackish discharge or maybe blood idk..... And I know it wasn't my period because my period is BEYOND HEAVY and last about 7 days....well its November now...and I didnt get a period in October...only that happened.....so could I be pregnant?