How Much Does IUI Increase the Chances of Pregnancy? IUI is an abbreviated form of Intrauterine insemination, also known as artificial insemination, which is a fertility treatment in which sperm is implanted directly into a woman’s uterus.Sperm must drift from your vagina by your cervix, into your womb, and your fallopian tubes during a natural conception. The fact is only five per cent of sperm is capable of travelling from your vagina to your womb. https://www.beenamuktesh.com/blog/how-much-does-iui-increase-the-chances-of-pregnancy/