ECP (emergency contraceptive pills) are not magical pills that prevent pregnancy. They only do one thing: delay ovulation. 

But what if someone has already ovulated and there is an egg in her body? What will happen to that egg when she takes the pill?

nothing.

So let's talk about what is the most effective form of emergency contraception (*hint* it's not a pill), and how to avoid the need for it in the first place (*hint* I'm going to do a condom demo on a banana.)