"i took this within 12 hours of having unprotected sex. he pulled out, but i was nervous about getting pregnant from pre-cum (the internet is a scary place, yall). i took this and i felt like death for about 4 days. i had very swollen boobs and lower back pain and felt like i was about to get my period all week long. i have been so stressed thinking that i may be pregnant and my period just arrived 3 days early. this stuff works, but it&#039;s not for the faint of heart. going on the pill asap. i highly recommend this, if anything, just for peace of mind."