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This question was answered on Mon 25, Aug 2008 03:09am by Dr Smitha M, MD
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useing contraceptives to prevent pregnacy after un protected sex



Asked by Unregistered 00 on Sat 23, Aug 2008 09:34am :

I had unprotected sex last friday. I took a home pregnacy test one week later and it was negative. I am still not sure, is it too late to use a contraceptive pill to prevent pregnacy?
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Answer by Dr Smitha M, MD (doctor) on Mon 25, Aug 2008 03:09am:

Hi, The morning-after pill (levonorgesterol) only works within 72 hours of contraception. This is due to its mechanism of inhibiting the action of progesterone and preventing the implantation of the fertilized egg in the uterus. If you have crossed the 72-hour period, you need to evaluate a few other facts. If you were in the middle of your cycle, that is, between 12-17 days after starting your period, and you have regular menstrual cycles (28-30 days), it is likely that there could be a pregnancy. If you had unprotected intercourse at a time other than this ‘fertile’ period, it is unlikely that a pregnancy could occur. If you miss your period, you have three options: 1. Take a pregnancy test and, if positive, approach your gynecologist for an MTPill. This is a mifepristone tablet of 200 mg and three tablets taken in a single oral dose within 49 days of pregnancy will result in an abortion. The use and administration will need to be supervised by a doctor in a clinic given the drug’s potential to cause severe bleeding in some individuals. 2. If you wait longer than 2 months, you will need to have a medical termination of pregnancy done by dilatation and curretage. This involves more invasive intervention as the contents of the uterus will be scooped out under anesthesia. 3. Have the baby and give it up for adoption. Do remember to use a condom next time. It will avoid a lot of stress and protect you from sexually transmitted infections.

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