Once an embryo has been frozen, it looses 50% of it’s fresh potential and this is clearly demonstrated in the frozen-thawed pregnancy rates. The way in which one uses your frozen embryos will ultimately depend on how they were frozen, meaning how many were frozen and how many per straw. One would therefore thaw one straw and see what the outcome is. If they have thawed properly, they should be grown for 2 days to confirm viability before the transfer takes place. Should they not survive the thaw, one would then thaw the next star and so on…

- Week 15 answers kindly provided by Dr. Stephan Volschenk -

Frozen – thawed embryos loose about 50% of their fresh potential This is due to the very stressful freezing and thawing process. Thus, fresh is always better than frozen. The quality of the embryos that are frozen is also very important and embryos should fulfil strict criteria before being chosen to be frozen. Once the embryos have thawed and PROVEN their ongoing potential by being grown in the lab for two days, the likelihood of a successful pregnancy is still lower than that of a fresh cycle.

- Week 7 answers kindly provided by Dr. Stephan Volschenk -

The Lucrin is generally stopped on the day that the progesterone supplementation starts, which is 2 days before the embryo transfer is performed. However, this is one of the areas where we use the depot preparation in our clinic which means the Lucrin is already out of the system when the embryo transfer is done.

- Week 6 answers kindly provided by Dr. Stephan Volschenk -