I had a blood transfusion after giving birth to DS, due to massive blood loss during surgery.
it wasn't a life or death scenario, and to to be honest it felt wrong, I dont know how to explain it but it "felt" wrong?

that being said if it weren't for blood transfusions, my mother would not be alive today, due to a mc at 16wks that left her with retained product that made her haemorrage quite badly, my dad still tears up when we talk about it (and that was 20 years ago) he really thought she was going to die.
im not religiously against it, im not ethically or morally against it, like I said, Ive had one and didnt like it much, but there is a place for it, in my opinion.