Difficulty in recruiting patients

Women undergoing in vitro fertilization (IVF) therapy, who are low responder and agree to enter the trial will be randomized to a study group, for whom embryo transfer will be done on the same day as oocyte aspiration and fertilization; and a control group for whom embryo transfer will be performed 48 to 72 hours later, as is the current accepted practice.

Inclusion Criteria:

• Patient undergoing IVF
• Number of mature oocytes equal to or lesser than the maximum number of embryos intended for transfer

Exclusion Criteria:

• Patient nor consenting