Not just anybody can become a donor - interested women are subject to a lengthy screening process. In the first instance, Derek had to complete an application and attend an interview. "It was like a job interview," she says, "They want to make sure you're a normal person. I also had to fill out a 40 page questionnaire."
If a donor makes it through this first stage, she will go through extensive medical and psychological screening including a pelvic exam, ultrasound, and blood tests for genetic conditions and infectious diseases, including sexually transmitted diseases (STDs). She will also be expected to provide a detailed medical and psychological history of herself and all of her close blood relatives.