system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, METHODS, METHODS, METHODS, RESULTS. Meshes: Adult, Culture Techniques, Embryo Implantation, Embryo Transfer, Embryo, Mammalian, Female, Fertilization in Vitro, Humans, Pregnancy, Pregnancy Rate, Pregnancy, Multiple, Prospective Studies, Time Factors.
user
Is pregnancy rate improved by delaying embryo transfer from days 2 to 3? Context: To compare the outcome of assisted reproduction in day 2 versus day three embryo transfer. Prospective study. A total of 927 consecutive embryo transfers for IVF and ICSI cycles including 626 embryo transfers on day 2 and 301 on day 3. IVF and ICSI. Clinical pregnancy rate. There is no significant difference in the pregnancy rate between ET on day 2 (50.9%) and ET on day 3 (50.5%).
assistant
Embryo transfer could be done on days 2 or 3 according to the convenience of the patient and the medical team. Final Decision: no