"For . million American women of childbearing age getting pregnant is not an easy task. Specialists now have a way to test the parentstobe that may not only increase their chances of getting pregnant but also reduce the risk of them passing on certain genetic diseases. When we do preimplantation genetic screening we can ensure that the embryos are chromosomally normal before transferring them back to the intended mothers uterus and that increases the likelihood of implantation Dr. Jared Robbins an associated professor in obstetrics and gynecologyreproductive endo  infertility at Northwestern University Feinberg School of Medicine told Fox News. According to the Centers for Disease Control and Prevention CDC birth defects caused by genetic disorders affect one in every  births in the United States. The test results may limit the chances of an embryo carrying a chromosomal disorder from being implanted. We cant fix the embryos yet but we can determine which embryos are affected by the disease and which arent and only transfer back those that are not affected Robbins who is also a fertility doctor at Northwestern Memorial Hospital said. A diagnosis before pregnancy may sound like a designer baby but doctors say thats not the case. We have the technology and ability to eradicate diseases that have ravaged families for decades  Dr. Kaylen Silverberg of Texas Fertility Center told Fox News. Theyve lost family members generation after generation after generation or theyve had family members whove suffered from chronic disease thats totally preventable. These procedures not only help limit the passing on of diseases they may also help couples get pregnant faster. Were getting significantly higher pregnancy rates significantly lower miscarriage rates Silverberg said. These results have helped eliminate preterm birth and hospitalizations for preterm labor and patients and families have better outcomes he added. Preimplantation genetic screening doesnt necessarily get patients pregnant unless they have good embryos Robbins noted. All it does is allow us to choose the best embryos to transfer so that we can get the patients pregnant faster he said. Experts say the couples are not the only people who benefit from these tests. The results may help family members who are trying to get pregnant make decisions as well."