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Is The IUD Effective Immediately When It's Inserted While You Have Your Period?

Published: April 13, 2015
Dear Is The IUD Effective Immediately When It's Inserted While You Have Your Period?,

I just got A mirena iud put in on Friday . me and my boyfriend had sex today . I had it inserted while I was ending my period , it says if it's inserted during your period it is effective immediately. could I still get pregnant?


Dear Is The IUD Effective Immediately When It's Inserted While You Have Your Period?,

For our readers who may not know, Mirena is a hormonal IUD (intrauterine device) that is inserted into a woman’s uterus in order to prevent pregnancy from occurring. Like any other type of IUD, Mirena does not protect against STDs (a condom should be used along with Mirena in order to prevent the transmission of STDs). However, IUDs are one of the most effective methods of preventing unwanted pregnancies, as less than 1 out of 100 women will get pregnant each year if they are using an IUD.

According to Planned Parenthood:

Hormonal IUDs are effective immediately if inserted within seven days after the start of your period. If you have Mirena or Skyla inserted at any other time during your menstrual cycle, use another method of birth control like a condomfemale condom, or spermicide if you have vaginal intercourse during the first week after insertion. Protection will begin after seven days.

That said, since you had your IUD inserted during the end of your period (we’ll assume it was inserted within 7 days of the start of your period) you would be fine. Your chances of becoming pregnant would then be extremely low, just like anyone else using the IUD.

After getting your IUD it is important to meet with your doctor to make sure it is still in place. You should have a check-up after you get your first period or at least within 3 months of getting your IUD inserted. It is also important to get regular check-ups to make sure everything is ok with the IUD – this can be done at the same time as your periodic GYN exams.

If you have any questions about your IUD or concerns about preventing unwanted pregnancies or the transmission of STDs, speak to your primary care physician, gynecologist or adolescent medicine specialist who inserted the IUD.

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