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A member asked:

Hi doctor , does norlevo works if the egg is fertilized ? my girlfriend took norlevo 1 hour after unprotected sex , but she was in ovulation period.

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Emergency contracept: Emergency contraception works by preventing ovulation. It will not disrupt an already fertilized egg. Considering starting birth control and using condoms to prevent these kinds of scares in the future.

Dr Higginbotham agreed

Answered 12/14/2013

4.7k views

Thank

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Compliment of the season doctors! How early can fertilization of egg and sperm occur post ovulation ?

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If i took only one Depo-Provera shot and missed the next one haven't got a period but I have been having unprotected sex did i ovulate yet ?

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Ovulated on janiary 20 had unprotected sex now missed period by one day?

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I stopusing my nuva ring on sept 22nd, had a period that month, and had one oct 12 -17. No in november, unprotected sex on 12/1. Could I have ovulated?

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I had unprotected sex, took only one of the two Norlevo pills, my period started on the correct date, now my second period is 14 days late. Concerned?

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