I think my way round this is to leave clear instructions with my next of kin that I'm happy for any body parts of mine to be donated with the exception of my reproductive organs. I don't think anybody would want mine, anyway, as I'm postmenopausal and had decades of endometriosis, but just in case.
My reasoning is that the human population is already growing too fast and the ethical problems thrown up by all sorts of fertility interventions are immense. If I were ever in charge, I would ban surrogacy outright in all circumstances and I would also put an outright ban on womb transplants.
This may seem hypocritical to those suffering the awful pain of infertility, as I have two children. However, I think I would feel the same even if I hadn't been able to have children. Many fertility interventions represent a huge physical and mental health issue for the woman seeking to become pregnant and for the child that might be born if the treatment is successful.