Sooo me and my boyfriend of a year had sex a little over three weeks ago. I have been on birth control for about 3 or 4 years, and ive never missed a day and generally take it on time. We also used a condom and he claims he pulled out in time yet i felt something wet on the outside of my vagina. I also took the plan B pill about 3 hours after doing it. Is it still possible that I could be pregnant, i feel like i could have symptoms but i might just feel that i have them cuz im worried about being pregnant. Is it even possible to feel symptoms after 3 weeks? And i had a period last about a week and a half ago...helllp