Endometrial Priming for Embryo Transfer

A Randomised Control Trial to Evaluate Efficacy and Safety of Two Different Protocols of Endometrial Priming for Embryo Transfer.

The aim of this trial is compare two different endometrial priming protocols

• women that receive oral estrogens
• women that receive transdermal estrogens

Inclusion Criteria:

• Women between 18-50 years old with desire of children and needs of embryo transfer.
• Plasma prolactin less than 30.
• Uterine cavity that allow pregnancy, body mass index between 20-30.
• And signed consent inform.

Exclusion Criteria:

• History of estrogen dependent cancer, unknown origin vaginal bleeding.
• Ovarian cyst.
• Contraindications to be pregnant.
• Estrogen allergy.