Scared if plan Bbworked or not??

I had sex 5 days before and I took the morning after pills 8 hours after unprotected sex with my bf. However, my cycle was right at the end of ovulation phase, I was afraid if fertilization could have happened within that 8hr gap and will Plan B be effective after ovulation.

I never heard of such thing but there is one particular article saying it’s not effective if you are ovulating or after ovulation 🤷‍♀️🤷‍♀️I’m confused.

I didn’t get any spotting, my period is supposed to be in next 6 days and I do feel like I am in luteal phase (mood is low and decreased libido)which normally happens to me in LP