A member asked:

What if i used ecp after 72 hours?

A doctor has provided 1 answer

Less effective: The best protection for this type of med is achieved if taken within the 1st 48-72 hrs. The effectiveness (preventing pregnancy) begins to decline for some of these products if taken later. There are some that are effective longer, but you did not specify the product used.

Answered 1/26/2020

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