The odds of becoming pregnant depend on a number of factors, including genetic or hormonal problems, mechanical obstructions, the number of eggs extracted, the age of the female patient, and the male sperm count.

According the Centers for Disease Control and Prevention (CDC) on Assisted Reproductive Technologies (ART), there were 64,036 cycles of or attempts at ART in 1996 that resulted in 20,659 babies born. These figures compare favorably to those of a fertile couple trying to achieve pregnancy.