I started taking birth control pills in January and we always use condoms. The last time we had sex was Feb 8. I got my period the last week of February as normal (cramping, medium to heavy bleeding for 4-5 days). But my period for March was super light. It was basically really dark brown at first and the dark red with clots but there was no real flow. It only lasted for 2 days. Now I'm waiting for my period this week. It's not technically late yet but I'm not super crampy and there's no real sign it's starting soon. Could I be pregnant? Even though I used 2 forms of protection and had 2 "periods"?