Hi i had unprotected sex on monday while i was ovulating if i take the morning after pill( i pill) four days after will it still work?

Maybe not, but...: But, what does it mean if an i-Pill doesn't work? If it means a woman would have the same chance of pregnancy as if she did not take an i-Pill, her chances of pregnancy would average 20-25%. That means without an i-Pill, she might not get pregnant... or she might and then, of course, have a baby to keep her company. Consider asking the doctor for Ella (ulipristal acetate) or an IUD, which may work even 5 days out.