"i took plan b about 36 hours after unprotected sex. i literally was so scared i would get pregnant and googled everything on plan b way too much. i&#039;m on birth control but hadn&#039;t been taking it at the same time recently. i had symptoms throughout that i was paranoid were pregnancy symptoms like random cramping, lower back pain, and sore breasts. my nipples were always hard! but exactly 3 weeks later, today, i got my period!! it is a few days later than when i usually have it, don&#039;t worry, it works! trust it."