i had my periods on 3rd of august 2015 and my average cycle is around 30-32 days. i had sex on 1st september 2015 using condom. sperm was ejected within condom only. after having sex, within 2 and a half hour i used unwanted 72 so as to nullify the chance of pregnancy. and after having pill withinone and half hour i vommited. so is there any chance of getting pregnant? will there be any effect on my normal periods? if yes, then what should be the diet so that i may get my periods normal?