"i had unprotected sex on the seventh. took the pill about 2 hours later. i didn&#039;t experience any side effects at all after taking it. i usually start my period on the 15th, and i had been cramping a couple days before along with mood swings. on the fifteenth i started just having some light brown discharge, and this continued for two days. i was worried that it might be implantation bleeding, but on the 17th i finally started bleeding. the pill worked great, but i never want to experience the stress of it ever again."