Clomid successfully stimulates ovulation 80 percent of the time, and 40 to 45 percent of women taking Clomid become pregnant within six cycles. Intrauterine insemination combined with Clomid has a pregnancy success rate of 8 percent to 20 percent. IUI success rate is lower in women over 40, explains About.com.
Clomid is another name for clomiphene citrate. Clomid is taken orally to treat ovulation problems, including irregular menstruation, polycycstic ovarian syndrome and menstruation without ovulation. Clomid is also used to treat unexplained female infertility, according to About.com.
Intrauterine insemination is the most common form of artificial insemination. Sperm is collected and prepared before being inserted into the uterus via a narrow catheter tube. The procedure is brief and painless, states WebMD.