I'm hoping to find people who have experienced the above; used ICSI with a decent sperm sample, but still got very poor fertilisation rates (i.e. less than 50%)
Firstly, my long story short:
- DH and I started ICSI due to severe MFI.
- Cycle #1: 6 eggs, all mature, all ICSI'd with a terrible batch of DH's frozen sperm, only 1 fertilised.
- Cycle #2: 10 eggs, 6 mature, only one of DH's live sperm could be found in thawed sample, 1 egg ICSI'd, and miraculously fertilised.
- Cycle #3: No frozen sperm left, and nothing found in TESA/PESA, so we used anon US donor back-up. 8 eggs, 5 mature.... only 2 fertilised. One didn't make it to Day 5, the other was fine until Day 4 when it fell behind, and was only a morula when transferred, instead of a blasty.
From POAS, I believe that I managed to achieve a very brief chemical pregnancy from this emby.
However, I'm really scared about doing future cycles, as I always thought our bad fert rates were due to DH's bad sperm. But now that we're using donor sperm that has been screened for quality and we're still getting low fert rates with ICSI, I'm wondering if the problem also lies with me, and whether the same thing will keep happening.
Has anyone else used ICSI (not IVF) with good quality sperm, but had bad fertilisation rates (less than 50% of mature eggs retrieved)? Did you still have success eventually? Were you given any reasons as to why it happened? Did you change anything or do anything differently and got a better result next time?
I hope someone can relate to this scenario, as it would be great to have a chat and pick your brains, so to speak. My follow-up appt for this cycle isn't for another week, so I can't talk to FS until then. At transfer, neither he or the embryologist could give me a reason as to why it had happened.
Thanks for reading.