last month i bleeded brown blood a week before my period and about 5 days after having unprotected sex with my boyfriend, but i am on the pill. i took 2 pregancey test both negative but then this month a week before my period was to start brown blood, again. i didnt take my pill for about 4 days this week but no red blood just brown, i should have started my period on wednesday it will be a week late, could i be pregant even know last month after the brown blood i did have a period and i dont really have any sings, beside i been more emotional?