Inclusion Criteria:  Female, 19-40 years of age, and infertile Meets qualifications for standard intrauterine insemination procedure At least one patent fallopian tube with no evidence of hydrosalpinx  Exclusion Criteria:  Greater than three prior intrauterine insemination (IUI) cycles or any prior assisted reproduction procedure (e.g. IVF) Current or recent pelvic infection Prior ectopic pregnancy or tubal surgery other than salpingectomy