Is it possible to get pregnant while on pills? please help!? actually iam not delayed. i dont know if iam just paranoid. i had my period feb.14, which is 5th day of my 7 day rest. and took my new set of pills feb.17.But a few days ago i sometimes feels having menstrual/abdominal cramp, which i think not normal because i still have one week for the compleiton of my 21 pills. is it norma l to have cramps one week before period? i have no doubt on my ladt period that its really period..i know that is really a period. its just that i know that few days after i started taking my new set of pill, i had missed taking one nyt, but i knows nothing happened in contact. iand early in the morning i took a catch up pill and one pill again in nyt as usaul time.so i would like to ask whythere is a cramps?what are the possbility?