@heartsease68 I agree that policy makers may have wanted to do that, probably because if the birth mother was not recognized as a biological parent then there could be issues with donors coming back, perhaps years later, and claiming a child was 'their child'. The child is their genetic child (and genes are biological) but the law needs to be clear in order to ensure children have parents.
I think the risks of egg or sperm donors regretting their actions are probably much smaller than surrogates perhaps regretting the situation. But whatever fertility arrangements are made the law needs to be clear who is who to the child.
As far as I am aware prior to 2005 there was no right in the UK for a child to trace a donor.
Now there is that right, which I support, which is why we chose to use a British fertility clinic for our (unsuccessful) treatment.
Obviously, it is not possible to have donor egg treatment without the use of a clinic, so it is something reserved for that 'area'. But I still cannot imagine any situation where a woman giving birth to a child would not be the biological mother.
It's fine, I'm not offended I just found your terms a little strange. Like I would be the only person to think something!
Our treatment was unsuccessful, I've got a biological/genetic/birth daughter! And an adopted son. I am fine but I do remember that fertility treatment (six plus years between dd and ds) as all quite stressful, so maybe I am reacting to that.