"so i am not on any form of birth control (i use fertility awareness as i have been doing this for the past 3yrs very successfully) and my partner and i don&#039;t use condoms. this particular day, i had not realized it was my &quot;ovulation day&quot; and thus had unprotected sex with him (he does not pull out). it was 60hrs later when i did remember and rushed to take plan b. because i already know i ovulated  (100% sure), i was unsure if plan b would be effective. it was the most nerve-wrecking 2 weeks of my life but plan b did work! so even if you do take it after ovulation, it&#039;s still a chance plan b makes the uterus inhospitable for the embryo to implant and grow. best wishes to everyone who may have a similar experience!"