hi, on wednesday i ended my period and on thursday i had unprotected sex. Friday i expireinced some spotting which is normal for me a few days after my period. i was getting nervous so i went out and bought next choice. i took the first pill within 72 hours on sunday and the next pill 12 hours later on monday morning. i took the second pill about 2 hours ago and am feeling heavy cramps and some stomach pain. is this normal? could i be pregnant? thanks in advance for you help!