A pregnancy that was unplanned and not hoped for is not always the fault of the women or the careless birth control measures, but it could be because of the genes of the woman. Hundreds and thousands of women use hormonal contraceptives to reduce the chances of having an unplanned child and these contraceptives may include pills, vaginal rings, or contraceptive implants as well. These measures will release a hormone that will stop the releasing of an egg and also prevent changes in the body that may increase the chances of pregnancy.

Some women still become pregnant and the experts say that this could be due to the wrong method used or women starting to use contraception when they are at early stages of pregnancy. Experts say that may not always be the case and the woman may not be at fault always. A study was conducted that took blood samples of around 350 women who were healthy and were using implanted contraception. This was because implants are one of the most effective ways of contraception. The study wanted to look at some genetic variants that had been associated with how the body may regulate the hormones.

It was revealed that the BMI and how long the implant had been fitted impacted etonogestrel in a women’s blood. The variant CYP3A7*1C was found in almost 5% of the sample. It was discovered that almost 30% of the women with the above genetic variant had levels of etonogestrel below what was required for the prevention of the release of an egg. The ones that did not have this genetic variant had lesser chances of getting pregnant while still using contraception. Experts have also suggested that the changes that are introduced by the implants could still hint that most of the women will still remain prevented from the risk of getting pregnant.

The authors still suggest that women should not be concerned about this issue yet as implants are still the best birth control method that they can possibly access. They also say that it may be too early to claim that women can be screened for the genetic variant. No matter what, the findings do suggest that there must be more studies to know what should be done as for other methods of birth control that have progestin at lower levels.