Effect of Premature Luteinization on the Oocyte Quality in Oocyte Donation Program.

Analyze the possible effect of the progesterone levels of the hCG administration on the oocyte embryo quality. The primary endpoint of this study is the pregnancy rate.

Inclusion Criteria:

• Oocyte donors; age range: 18 - 34; BMI: 18 - 29; long protocol.

Exclusion Criteria:

• PCO syndrome;