Some mothers express concern over possible birth defects caused by starting the medical abortion procedure. However, if you take the progesterone as part of the abortion pill reversal process within 72 hours of taking the mifepristone, your chance of a successful pregnancy increases to 55% and possibly even to between 60-70%. If you’ve only taken the first drug, mifepristone, and you do not take the second drug, the chance of a successful pregnancy is approximately 15-25%. However, as of September 2017, more than 300 babies have been born successfully to mothers who underwent the reversal process and there have been no recorded birth defects. This “reversal” process offers no guarantee of success. If you have not yet taken the second medication, then the abortion pill reversal process provides you with extra progesterone which acts to counter and reverse the effects of the first drug you took. The second medication, misoprostol, acts to prepare your cervix and induce labour. The first drug you were given, mifepristone, acts to block your natural hormone progesterone which is needed to nurture and sustain your pregnancy.
The Abortion Pill, called Mifegymiso in Canada, is made up of two different medications. If you have only taken the first drug, mifepristone (also called Mifeprex), less than 72 hours ago, and have not yet taken the second medication, misoprostol (also called Cytotec), you may be able to preserve the pregnancy if you act quickly.