I ovulated 5 days ago and my period is supposed to be here in 7 days. i had unprotected sex 5 days after ovulating and he did not cum inside of me. should i take plan b?
Chance are VERY low.
The egg is only viable for about 48 hours AFTER ovulation. It wouldn not be capable of being fertilized.
Timing wise, having sex within about 9-10 days or less BEFORE your period is due you are NOT likely to get pregnant.
Based on your post you don't need Plan B.