I have been on birth control for nearly 2 years now and have taken it at the same time every day right down to the minute. Up until a month and a half ago I had been sexually active and used the pill, condoms, and pull out every time. There was one instance where we didn't use a condom, however he did not ejaculate inside me. My past two periods have been brown discharge, not enough to fill a liner, for about 4-5 days. Could I be pregnant? Please help, im scared