The month of August I took my birth control pill, but not always super close within the hour, i wasn t planning on having sex soon, so I didn t think it was a big deal. Then I ran out & took like a week to call more in. When I got some, I started a day before I had intercourse & after that I ve been spot on. This was the 16th of September when I had intercourse. My periods usually come during the end of the month. Do you think I m pregnant? Or maybe it s just late, or could my menstration cycle be thrown off due to accurately taking birth control again?