dr. doyle produced embryos using the fathers' sperm and implanted them in the uterus of a surrogate mother. that's legal in many parts of the u.s. in european countries such as denmark and germany, it's a criminal offense, punishable by up to three years in prison. that's why carsten from denmark has come to the u.s. dr. doyle does what his country doesn't allow. carsten is nervous. he's about to learn the results of the genetic tests. >> of course, they test for the most common genetic diseases and also they test for the sex, and we prefer to have boys, because there are lots of girls in our families. >> the 15 embryos produced in the lab through in vitro fertilization, or ivf, are pre-sorted. only the embryos with the best genetic test results will be implanted. dr. doyle tells carsten about the results. >> there are two butiful boy embryos that we've chosen, and there are other ones that we're evaluating and testing, but that's what we're going to transfer. >> good. so we get whatever we wan