Husband and i had unprotected sex 7 days after my periods ended i have was worried i might get pregnant and took a pill next day within 72 hour's?

Probably safe: If you took an emergency contraceptive the next day (within 24 hours) it should be 95% effective. By 72 hours it is still up to 89% effective.

Chance: That was in the window of ovulation. So the overall chance could be as high as 20%. After taking the pill that chance should drop to close to zero. If for some reason you do not get your period then check a pregnancy chance to make sure

Good: It may help. If you had orgasmic sex risk is higher.

Emergency Contracep: Plan B One-Step can reduce your risk of pregnancy by up to 95% if used within 24 hours of sex. If taken within 72 hours it can reduce risk of pregnancy by up to 89%. .