That’s a really good question; what do we do with the thousands of frozen embryos since it is morally prohibited to dispose of (kill) them.
This is an area where the Church has yet to make any definitive statement.
However, we can use some principles to guide our thinking:
- Such embryos were conceived by methods shunned by the Church.
- However, there are thousands of babies conceived out of wedlock, also morally unacceptable.
- Now we have these babies and embryos? What to do?
Babies, pretty easy solution in concept; adopt them or help support the unwed mom in raising the child.
Embryos…different story. If they stay in the frozen state, eventually they will degenerate and die. In a moral sense, it would seem that we would have an obligation to save their lives if possible.
The only way to do that is through implantation in a suitable surrogate mom.
However, such procedures seem to be morally prohibited.
My suggestion is that the IVF ship has already sailed; the embryo is made and it’s a done deal, same as the pregnant unwed teenager. Granted, while an additional medical procedure (implantation in a surrogate), the procedure is being used as a life-saving measure, vs.if it were in the course of creating a new life i.e. a new IVF procedure.
Another less directly related parallel would be the transfer of a fallopian tube (ectopic) pregnancy back into the uterus, if such a thing could be diagnosed and surgically corrected. Not a direct comparison, but the intent of implantation in that case is to save the life of the fetus. Not a great example, I’ll grant you that.
Bottom line is that it wouldn’t seem to be the implantation procedure that’s problematic, as there is a pre-existing embryo conceived through immoral circumstances.