Sperm freezing before chemo - how many samples?

[Spermfreezer]

Does anybody have experience with this and know how many samples are needed for a fair chance of pregnancy? I realise it probably depends on quality and method of fertilisation etc too, as well as urgency of chemo, but wondered if anybody had any advice

Thanks

We had time for 2 which would have been enough for ICSI - we didn't end up needing it as the 6 months post chemo sample was much better quality than the pre chemo samples - motility was the big issue pre chemo. Caught naturally first try about 2 years post all clear.

Thank you and that's lovely to hear you conceived naturally. I guess each sample is only good for one round of ICSI - or can they fertilise several embryos each time to be frozen and used on subsequent rounds?

I don't really like the idea of freezing and unfreezing at several stages but just trying to understand options

Oops name change fail

My husband only had time to do 2 sessions of sperm "production" for freezing as he had to have an emergency Orchiectomy and then straight onto chemo. It was all very short notice, ie we're operating in two days, go straight down now and do first sample today and second one tomorrow. Quality of second sample wasn't as good as the first (probably due to it only being a day later!)

There was plenty for 4 x ICSI and 2 children later we let the remaining sperm which had been kept in storage perish (NHS will ask you after 10 years if you wish to keep the stored sperm).

They will store sperm in "straws" and you should get several straws per sample. This means that you don't have to thaw all of one sample at once. So one sample can do more than one ICSI/IVF round.

The staff at the clinic will give you advice. They must get asked this all the time.

My Dh started a type of chemo (not for cancer though) and was recommended to freeze samples. We had to go privately to do this and could only afford one sample. It was a good quality sample so the medical team said that one should be enough. They got 6 "straws" from that sample.

Depends on numbers of sperm - each sample should contain millions and ICSI chooses the best to inject into the egg. IVF requires more as the sperm are put with the egg to do their thing.

I should have pointed out that my husband had low sperm count and motility before the cancer and those two samples (poor as they were) were good enough for our ICSI rounds with leftovers and two successful outcomes.