Hi all, okay first off I AM on the pill. Me and my boyfriend have sex and do not use a condom but I faithfully take the pill at the same time each day and have not missed one. I am due for my period sometime after tomorrow into the next week but I experienced a little bit of dark blood on my underwear yesterday. It is gone now and I am waiting for my period to hopefully start. What do you think this is and could it be a sign that maybe I am pregnant? Your advice would be greatly appreciated as soon as possible. Thanks