After all, if you decide to get an IUD, the entire point is to have an incredibly reliable form of contraception that allows you to control when—if ever—you get pregnant. But getting pregnant with an IUD can happen in some extremely rare occasions. Track athlete Sarah Brown knows this firsthand. In July , just four months after giving birth, Brown was training in hopes of making the U.
Olympic track team for the 1, meter run. Brown eventually took an at-home pregnancy test that was negative, but a few weeks later, she went to see her doctor who determined that Brown was, in fact, pregnant. So, how likely is it that getting pregnant with an IUD will happen to you the way it happened to Brown? There are a few different kinds of IUDs , all of which are implanted inside the uterus to prevent pregnancy and last anywhere from three to 10 years.
Some contain progestin, a synthetic version of the hormone progesterone. It thickens cervical mucus, making it tougher for sperm to get to an egg. It also thins the uterine lining so that even if the sperm did reach an available egg, the fertilized egg would have a hard time implanting. In addition to expulsion, the other common cause of failure was inadvertent insertion of the device while the patient was pregnant. Mirena provides a favorable environment for implantation of an already fertilized ovum and unlike copper IUD, it is not a method of post-coital contraception.
These devices had been inserted before the pregnancy and were confirmed to be in the uterus before and during pregnancy. It is well-documented that true Mirena failure is extremely rare, our patient being one of them. This patient continued to have cyclical bleeding despite a normally placed device in her post-partum period. The amenorrhea that followed was because of the pregnancy and not because of the Mirena. It is difficult to say whether Mirena was effective at all in this patient or not.
Although ovulation is not affected in patients using this device, the endometrium is severely retarded after 2 years of use. It is therefore difficult to comprehend how a pregnancy took place in this condition. Needless to say however, that the pregnancy could not continue in our patient as well as ended up in a missed abortion because of a hostile environment locally.
This case cautions clinicians to strictly monitor patients in whom the device has been inserted for contraception because true failures can take place and cause problems for the patient who does not desire a pregnancy. Source of Support: Nil. Conflict of Interest: None declared. National Center for Biotechnology Information , U. Journal List J Midlife Health v.
J Midlife Health. Author information Copyright and License information Disclaimer. Address for correspondence: Dr. E-mail: ni. Although IUDs are one of the most effective methods of contraception, failures still represent a substantial number of unintended pregnancies.
The results of this study are clearly reassuring, as we found that anti-inflammatory drugs or any other medicines taken by the woman did not affect IUD efficacy. Nevertheless, a previous expulsion is not a contraindication for a new IUD, on condition that these women have regular medical and echographical follow-up.
We thank the French Federation of Medical Gynaecology and all the gynaecologists for their active participation. Google Scholar. Google Preview. Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide.
Sign In or Create an Account. Sign In. Advanced Search. Search Menu. Article Navigation. Close mobile search navigation Article Navigation. Volume Article Contents Abstract. Materials and methods. Risk factors for IUD failure: results of a large multicentre case—control study. Patrick Thonneau , Patrick Thonneau 6.
E-mail: thonneau. Oxford Academic. Thierry Almont. Elise de La Rochebrochard. Bernard Maria. Revision received:. Select Format Select format. Permissions Icon Permissions. Table I. Sociodemographic and clinical characteristics of cases and controls. Open in new tab. Gynaecological background in cases and controls.
Table III. Table IV. The type that a doctor…. An intrauterine device IUD is a form of physical contraceptive. The two types of IUD are hormonal and copper. Discover how each one can affect a…. An ectopic pregnancy involves an embryo settling outside of the uterus, and it can be life threatening. Learn about the symptoms, effects, and…. What to know about pregnancy with an IUD.
Is it possible? Share on Pinterest Women with an IUD should speak to their doctor if they suspect that they are pregnant. Available options. Exposure to air pollutants may amplify risk for depression in healthy individuals. Costs associated with obesity may account for 3. Related Coverage. Is it possible to get pregnant while on birth control? Everything you need to know about IUD removal.
Medically reviewed by Debra Sullivan, Ph. What are the different types of abortion?
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