After losing a baby 20 weeks into our first pregnancy, my husband and I discovered that we are both carriers of alpha thalassemia, a genetic blood disorder that compromises the production of hemoglobin. Our unborn child had inherited alpha thalassemia major, or hydrops fetalis, a fatal condition that results in death either before or shortly after birth. We faced a choice: either get pregnant again the old-fashioned way and risk the 25 percent chance of losing another child, or try in vitro fertilization with PGD. We’d do anything to avoid the painful experience of losing a baby, so we opted for PGD, and our fertility specialist recommended that we work with Natera. Because PGD testing for alpha thalassemia is relatively new, and because of the particular challenges of testing for alpha-thalassemia with PGD, we were not sure if a PGD lab would be able to help us. However, much to our delight, Natera was able to successfully develop a PGD test for us and, in the end, the results were better than anyone had anticipated. Of the 10 embryos that were tested, four were determined to be healthy. We were elated. One of the embryos was transferred the following month, and nine months after that our beautiful son, Theo, was born. We are so grateful to Natera for helping us bring this happy, healthy little boy into the world. Not only were we spared the pain of losing another baby, but we’ve ensured that alpha thalassemia won’t be passed on to future generations. - M.&S.V., New York