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can a girl get pregnant by haveing sex after she took the plan b and depo the next day?

By Anonymous April 10, 2011 - 5:43pm
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The Depo Provera injection is only to be administered when there is no chance of pregnancy, for instance "during the first 5 days of a normal menstrual period" (according to the Depo Provera Patient Prescribing Information booklet).

Therefore, the injection would have been given during the girl's menstrual period, if administered correctly, and there would not be a chance of pregnancy.

Is this the girl's first-ever Depo Provera injection? If not, the girl may not be having her regular menstrual periods, and as long as she is receiving her injections within the prescribed timeframe, any sexual intercourse she would have had would be protected up to 99% (for pregnancy).

I am not clear why Plan B was taken, given these two circumstances.

Please have the girl (sorry---I am not sure if you are "the girl", or if you are a boyfriend asking about the girl) read the patient information booklet that comes with her prescription, so she understands how to use this prescription. If she no longer has it, she can find it under Patient Prescribing Information at DepoProvera.com.

Please let me know if you have any additional questions, or if you need to clarify the information you provided.

April 10, 2011 - 6:16pm
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Anonymous (reply to Alison Beaver)

yes its her first and yes i am the boyfriend i just need to know if shes okay because i had intercourse the next day she got it and well im pretty scared

April 10, 2011 - 8:51pm
(reply to Anonymous)

As I mentioned, her first Depo injection should be given during her menstrual cycle...at at time when there would be little-to-no chance of pregnancy. In other words: if the Depo shot was given at the appropriate time, having sex during this time would not be high-risk for pregnancy. There is a chance of pregnancy if the shot was NOT given at the right time (during her period).

So... If she was not bleeding during intercourse, please ask her about this, because either the shot was not administered at the right time, she has a chance of being pregnant if not using birth control...I'm not sure what the answer is to her situation.

Tell her you are concerned about her chances of pregnancy, and what did her doctor or nurse tell her, since this was her first time receiving the injection. Since you two were physically intimate, part of this responsibility is also talking about birth control. You have a right to know if she was fertile, having a period, just ended a period, or was using another type of birth control. You can ask why she did not expect you to wear a condom...did she assume she was not going to get pregnant? If so, why?

With most other forms of birth control (such as the pill), you must use a condom or other form of birth control for 7 days after beginning the pill for it to be 99% effective.

There are no clear-cut answers to your question, since we do not have all of the information from your girlfriend. There is a risk of pregnancy if she was not protected by birth control, and usually it takes 7 days for a woman to be fully protected (for the birth control to 99% effective at preventing pregnancy). However...with the injection, it should be administered during a time when the woman is NOT fertile and NOT already pregnancy...so having sex the same day as her receiving the injection (if given during her period) would indicate there is little chance for pregnancy.

Do you see the discrepancy? Please ask her for information; it is your right to know.

April 12, 2011 - 11:13am
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