What is In Vitro Fertilization?_

In vitro fertilization (IVF), is a form of assisted reproductive technology.  In IVF, sperm are combined with an egg or eggs in a Petri dish in an attempt to achieve fertilization.  The embryos which result from this process are then either transferred into the uterus in the hopes of beginning a pregnancy or, cryopreserved (frozen) for future use.