I lost my virginity on June 26th. We used a condom, but when he finished and took off the condom, he said something off handed about it almost falling off. I did not worry at the time he did not seem worried, and it hadn't actually fallen off. To be careful, I took plan b one step roughly 18 hours later on June 27th. I also got my period June 27th, but also simultaneously experienced plan b related bleeding, which lasted several days longer than the actual period. Now it is about four weeks later and I'm waiting on my period but I am worried because i do not feel any of my typical pms signs, and am very worried I could somehow be pregnant. Could I?