36 Versus 42 Hour Time Interval From Ovulation to Intrauterine Insemination

36 Versus 42 Hour Time Interval From Ovulation Induction to Intrauterine Insemination in Stimulated Cycles With GnRH Antagonists

The purpose of this study is to prove that a higher clinical pregnancy rate can be achieved with a 42 to 44 hour time interval between ovulation trigger and intrauterine insemination than a 36 to 38 hour time interval in stimulated cycles utilizing gonadotropins and GnRH antagonists.

Inclusion Criteria:

1. Patients who can be monitored for follicle growth and hormone measurements on the day of ovulation trigger, or one day before.
2. Patients who have no more than 4 follicles of 14 mm or more
3. Patients who have no more than 6 follicles of 10 mm or more

Exclusion Criteria:

1. Patients who cannot give informed consent to language or comprehension barriers
2. Patients who are deemed to be at high risk for high order multiple gestations
3. Patients who cannot be monitored on the day of hCG administration or one day before