And unless you know the answers, it’s OK to state so, find out and report back then. For those who have questions about how exactly to talk to your daughter or son about sex, consider consulting your son or daughter’s doctor. Lots of parents find this hard to tackle, and a doctor may offer some helpful perspective. WHAT’S an Intrauterine Device ? The intrauterine gadget is a bit of T-shaped plastic, about how big is a quarter, that’s placed inside the uterus to avoid pregnancy. Two types of IUDs can be found: one is protected with copper, the additional releases the hormone progesterone. How Does an IUD Work? The copper-coated IUD primarily prevents pregnancy by not allowing the sperm to fertilize the egg. It could also make it harder for a fertilized egg to implant in the uterus.Wiener, Ph.D., Susan A. Fiscus, Ph.D., Peter Kazembe, M.B., Ch.B., Innocent A. Mofolo, M.Sc., Maggie Chigwenembe, R.N., Dorothy S. Sichali, B.Sc., and Charles M. Van der Horst, M.D. For the BAN Study Group: Maternal or Infant Antiretroviral Drugs to lessen HIV-1 Transmission Approximately 200,000 infants world-wide become infected each year with human immunodeficiency virus type 1 through breast-feeding.1,2 With no treatment, half of these infants can die before their second birthday.3 Although formula feeding decreases the risk of postnatal HIV transmission, it really is associated with an increased rate of early loss of life.