When it comes to getting pregnant, sometimes nature needs a little push. That often means bypassing more conventional methods of intercourse and inseminating a woman with sperm, either from her partner or from an anonymous donor. Intrauterine insemination (IUI) is a simple medical procedure in which the sperm are inserted into a woman's uterus through a tube. About 700,000 artificial inseminations are performed every year in the United States, of which intrauterine inseminations are the most common. IUIs are relatively uncomplicated and are easier to perform than other assisted reproductive technologies. What do you know about the process?