Modern mothers have been confronted by a number of new choices, as well as ethical and moral dilemmas, raised by medical, reproductive, social, Internet, and workplace technologies. Reproductive developments have opened up the possibility of parenthood to infertile couples and other groups, such as single women not seeking a relationship, or gay couples. Medical developments have offered the ability to determine a child's health in the womb and have enabled premature babies and those born with severe birth defects to survive. Social and Internet developments have provided mothers with an expanded array of parenting advice, and their children with new independence and a host of potential dangers. Workplace technologies have allowed mothers greater flexibility and workday contact with their children.