So i had sex on March 9th and 4 hours after i took a Plan b to be safe and I got my period later that week. We had sex 3 weeks ago but protected and I'm nervous because I havent gotten my second period yet. My boyfriend says the pill delays my period and that i already had my period after I took the pill before. But It's about to become the 6th week without my period. PLEASE HELP I'm so nervous. I was supposed to get my 2nd period last week.. are there more women who experienced this?