I had sex the 13th of December and took Plan B 22 hours later. We used a condom but it slipped off when we were finished and I was just nervous so I took plan B just to be safe. My period was the 5th of December to the 8th. i had spotting after plan b about 5 days after taking it and it lasted for 4 days. A couple days after spotting i had really sore boobs and that lasted about a week to a week and a half. They are not sore anymore and now it is Jan 3rd and I'm waiting for my period to come but I am nervous it's not going to because my boobs are normally always sore a week before my period and this time they aren't. Please help, I really do not want to be pregnant.