Matters of Life & Death: Egg freezing revisited: What about the ‘surplus’ eggs, and is better contraception part of the solution?

A listener has emailed in two excellent questions in response to our recent episode looking at egg freezing. What happens to the leftover eggs which are frozen but never reimplanted, and can Christians be relaxed about this intrinsic wastefulness of the process? And also, if the whole problem stems from sexual activity beginning in your mid-teens but nobody wanting children until they are 30, should the state be investing more in better and simpler contraception to ‘fix’ the problem of this 15 year gap?