Fresh embryo transfer
In the long agonist protocol, a
maximum of two embryos was replaced on Day 3 after retrieval under
transabdominal ultrasound guidance. Luteal phase support was given by
vaginal or intramuscular progesterone at the discretion of the attending
physicians. A pregnancy test was carried out 2 weeks after the transfer.
All who had a positive pregnancy test had a transvaginal ultrasound scan
2 weeks after the positive pregnancy test (4 weeks after embryo
transfer) to identify the presence of a gestation sac with a foetal
heart signifying an ongoing pregnancy. All pregnant women were contacted
or traced for the pregnancy outcomes after delivery or miscarriage.