AIBU - to refuse treatment for recurrent miscarriage?

[WreckOfTheHesperus]

Not robust enough to post this in AIBU proper, but hoping for some opinions...

I am doing my 3rd IVF cycle, having had 2 miscarriages with the first 2.

I have just been diagnosed with high levels of natural killer cells, which may potentially be implicated in recurent miscarriage as they possibly try to kill the foetus, although the jury is still out - the science is still in its infancy.

The treatment involves temporarily supressing the imnmune system through steroids an/or an intravenous blood treatment. Both treatments would continue whilst pregnant.

I want to give my DD a sibling with all of my heart...but there are risks involved with these treatments, to my health and to the foetus's health.

I don't know (yet) what my chances are of having a baby without this treatment and but AIBU to be considering refusing to have it?

i don't think it's a question of whether you're "being unreasonable." to whom?? yourself? your child? there is no "duty" on a parent to provide siblings, and it's not "unreasonable" not to wish to go through more heartache having tried, and failed.
I know about the NK Cell theory and will myself be on steroids next time I get pregnant. Personally i'm loathe to do IVIg as it does sound quite radical/invasive but steroids are very well tested medicines and personally i think they're worth a go.
the side effects sound unpleasant, but in my case, if they don't work, i won't be taking them for long anyway. It sounds to me as if perhaps you could do with a few months "off" while you work out how badly you want another child.

Thanks for your reply Kissmummy; I would love to take a few months off, but am cracking on a bit, and don't have the luxury of time.

With the steroids, I am not so worried about the side-effects; it was more from reading HFEA website about taking them during pregnancy and I have been frightened a bit by knowing someone who got cancer a couple of years after she was supressed...anecdotal, I know, but I'm wondering if maybe I have these crazy cells for a reason, and therefore it's not right to do away with them?

Thanks Lunatic; good point about the immune system. I think that if i didn't already have a DD then I might feel differently, but I want to make sure that I'm around for her. You're braver than I am in trying again under such circumstances; I wish you the very best of luck.