Hi! In September of 2014 I stopped using birth control pills since I wasn't in a relationship. In late November, I went to a party where I got a little too drunk and don't really remember what happened. I'm almost positive I didn't have sex (and my sister who says I didn't leave her sight for the whole party semi-confirms this), but my generally anxious personality became convinced I was pregnant when my December period was late. I took two pregnancy tests in late December about a week apart, and they were both negative. After a party on NYE where I did have a protected sexual encounter, as a back up precaution, I took an emergency contraceptive pill. I had an early 3- day period (which is shorter than the typical period I would get before I was ever on the pill, but fairly typical of my periods on BC) in January. Since then, I've taken 3 more pregnancy tests (all negative), but I didn't get my period in February. Is it possible that I'm pregnant and that the bleeding in January wasn't a period? I've read a bunch on the internet about some women never having positive pregnancy tests while pregnant (and I watch those shows about women not knowing they were pregnant), so I'm kinda freaking out. Thanks!