I had unprotected sex on January 9 that lasted literally one minute, and he did not cum inside me. I took Plan B anyways an hour later. I got light then normal bleeding on January 15 that lasted 3-4 days. Then I stupidly had unprotected sex again on January 27, but he did not cum inside me. My last real period was December 31-January 3. It is February 14 and I don't know if I am pregnant, help!!