I've been on birth control for almost 3 years now and now I am engaged. i have always been good about taking my birth control until the last few months. I had a normal period last month but when I started my pack this month I missed the first four pills in the pack. Since then I've missed one here and there. He's *** inside me three times this month and pulled out the rest. We never use condoms. Could I be pregnant? What are my chances? I never got pregnant previous months from missing multiple pills.. I'm about two or three days from my period and I'm kinda gassy/constipated and had a small brown spot in my underwear yesterday..