you can get pregnant on the pill, it is just less likely to happen. Not taking your pill exactly as directed leads to decreased protection. I got pregnant on the pill because I forgot to take it a few times and had to double the next day.
well, i hv never used any B.C pills but i think if u are still taking them then i dont think u could get preg. i think its ur period on the way, just wait for couple days n see:)