"the condom ripped on aug 16th but he did not finish inside of me. the chance of getting pregnant from pre-cum is much less than the chance of getting pregnant from semen, but it still might be possible, so to be safe i got plan b one step. my period tracker had estimated i was to ovulate the 17th. i had taken the pill 16 hours after sex. i did experience nausea, lower stomach pain, dizziness and tiredness but it was nothing too extreme. i was expected to get my period aug 31st and i got my period yesterday, aug 22nd! a week early! my cramps are worse than usual but nothing i can&#039;t hadle! better than being 16 and pregnant! take the pill asap and let it do its thing. dont stress girls. be positive and keep yourself busy!!(:"