OI, IUI, IVF
Women normally ovulate one egg per month.
We can increase the odds of pregnancy
by increasing this 2-4 by using fertility
drugs. Similarly, we can increase the number of available sperm
by doing an IUI
(insemination) and placing millions of sperm in the uterus
, versus the hundreds that make it in after intercourse. Finally, in ivf we produce usually 7-14 eggs and fertilize them in the lab.