Hi, You have fairly good chances of conceiving as pre-ejaculate is enough to fertilize an egg as it contains enough sperms. This is because you are in your fertile period. You should wait for your next period and go for a pregnancy test 3-7 days later if you miss it; else, you can get serum beta-hCG titres estimated two weeks after the intercourse. If the act has taken lace within the past two days, you may go for emergency contraception as well, though the effectiveness may be in doubt; an intrauterine device is always better than pills. Hope this helps.