I took my 1st, 3rd, 5th and 6th pills, missed the 2nd and 4th, and then stopped taking my pills (Diane-35). I had 2 1/2 days of heavy, bright red bleeding (usually brown and lasts 5 days) on days 17-19, 9 days short of expected period. Even though I had this bleed, could I be pregnant? And when would I be able to test?