I don't know when i obvulate, i had unprotected sex the day after my period ended, what are the chances i'll turn up pregnant?

Not sure: Most women ovulate around 14 days after the start of their cycle. If you have short cycles (2-3 days) then you probably won't be pregant. If you have longer cycles and spot and this doesn't stop until 10-14 days, your chances of getting pregnant go up. If you aren't trying to get pregnant, i recommend having your partner use a condom and you see a doctor about getting on birth control.