2-day, 3-day or blast transfer?

When you do IVF, it is possible to transfer your embryos * on Day 2 after egg collection (usually 4-cell embryos), * on Day 3 after egg collection (usually 8-cell embryos) or * on Day 5 (after the embryos have reached blastocyst stage). Also, leftover embryos can be frozen on any of these days too. What are your options, what should you consider when deciding, and how/when should you talk to your doctor, nurse, embryologist about all this? […]