Can "the Pill" have dangerous side effects?

About this sermon

http://www.catholic.com/seminars/delgado.asp Catholic Answers Speaker Dr. George Delgado explains what side effects can occur in women as a result of using birth control pills. Dr. George Delgado is an experienced, popular speaker who has made hundreds of presentations to a wide variety of audiences. His topics include abortion, euthanasia, stem cell research, cloning, personhood, other bioethical issues and natural family planning. He is the medical director of Culture of Life Family Health Care in San Diego County. He practices family medicine, providing medical care that is faithful to the teachings of the Catholic Church for newborns, children and adults. Dr. Delgado is an NFP Medical Consultant trained in NaProTECHNOLOGY. Additionally, he and the other members of the staff are available to counsel women who are in crisis pregnancies. Dr. Delgado received his medical degree from the University of California, Davis and completed his residency at Santa Monica Hospital/UCLA. He is board certified in family medicine and in hospice and palliative medicine. Dr. Delgado is a Voluntary Associate Clinical Professor at the University of California, San Diego School of Medicine.