Last update I had on the development of our embryos was Wednesday morning (Day 1)…we had 4 fertilised eggs. Today (Day 2) we do not know what has happened to them. Tomorrow (Day 3) at 7AM we are going in to potentially have a day 3 embryo transfer. So we have been debating about our decision to do a day 3 or a day 5 transfer. Without any knowledge of the status of our embryos everything is rather circumspect. So we discussed the pros and cons of each scenario*.
Day 3 Pros
- Good chance of actually having a transfer!
- Maybe the embryos will be better off developing inside me.
- Freezing on day 3 means we have more embryos to freeze.
Day 5 Pros
- You get to transfer the best embryos
- Physiological conditions – embryos (blastocysts) would normally be in the uterus at the stage – so they are in the right place!
- Reduces the chance of multiples
- If the embryos don’t make it to day 5, then there isn’t a 2 week wait to find out and therefore less medication.
- good quality embryos (blastocysts) frozen.
- Better chances body has recovered from egg retrieval.
Day 3 cons
- A greater chance of multiples
- Embryos normally would be in the fallopian tube on this day
- Poorer quality embryos may be frozen
- Lower quality or ‘wrong’ embryos may be transferred
- Body not fully recovered from egg retrieval procedure – I am actually still massively bloated, my abdomen is sore and hard, walking is still not my greatest past time at the moment, I still have constipation and I am still bleeding a little bit (Initially thought I was peeing blood today!).
Day 5 cons
- Embryos may not grow to blastocyst (usually due to abnormal genetics – although isn’t this a good thing?)
- There is a risk of no transfer at all (crazy emotions could be a point here)
- Potentially less embryos to freeze
- May loose some embryos that would have grown inside the body
After our discussions we both believed that we would probably want to wait to transfer to day 5, but we will wait to see what the doctor suggests. I feel like we will have to make a decision on the spot which is a bit scary. And it is both of our decisions, not just mine and not just Chris’s either :-s Eeeek, I’m nervous!!!
*This list was mostly adapted from the book: IVF: A Patient’s Guide by Rebecca Matthews