Group 1 (coasting only): In their ICSI cycle patients will take 0.25 mg of cabergoline daily for 8 days from HCG triggering day to prevent OHSS. Early OHSS is assessed at day of embryo transfer and 7 days after this date. Late OHSS is assessed 14 days after embryo transfer.

Coasting plus cabergoline: In their ICSI cycle patients will continue their agonist treatment while stopping the human menopausal gonadotropin (hMG) injections for 1 day plus receiving 0.25 mg of cabergoline daily for 8 days from HCG triggering day to prevent OHSS. Early OHSS is assessed at day of embryo transfer and 7 days after this date. Late OHSS is assessed 14 days after embryo transfer.

In their ICSI cycle patients will continue their agonist treatment while stopping the human menopausal gonadotropin (hMG) injections for 1 to 3 days until drop of estradiol to a safe level to prevent OHSS. Early OHSS is assessed at day of embryo transfer and 7 days after this date. Late OHSS is assessed 14 days after embryo transfer.

The primary outcome of this study is the occurrence and severity of OHSS. OHSS was defined as abdominal pain and distention associated with nausea and vomiting and ovarian enlargement > 8 cm. The severity of OHSS will be assessed (mild, moderate, severe, and clinical) according to the American Society for Reproductive Medicine guidelines