Is It Advisable To Consume Multiple I Pills In Short Period?

Hi, I and my wife had some unprotected sex, with no ejaculation inside her vagina.

As a precaution, one evening she took an i-Pill. But immediately about 1 hour after her eating the pill, we have sex and i ejaculated a full sprout of sperms inside her.

She ate an i-pill just 45-60 mins before this sex, does she require to eat another i-pill within the next 72 hours

Any expert pls help give your views.