"i took this approximately 48 hours after unprotected sex while i was ovulating.  i felt fine after taking the pill. a few days before my period was due i experienced major mood swings, bloating, cramps and sore breasts. these symptoms  lasted the few days before i was due and then the symptoms stopped on the actual day i was due. but no period. needless to say i was freaking out! (this is why i am writing this to help others from freaking) -- i was supposed to start on a friday. then saturday rolls around, then sunday and no period... just really, really sore breasts on sunday. that monday evening i finally started and had breast tenderness, cramps, headache, tiredness... but atleast i started - 3 (longest days of my life) days late."