Alexandra and Calder are 19-month-old twins who have two different biological fathers.

Their fathers – Simon and Graeme Berney-Edwards – are among the few British couples who fertilize one embryo each during IVF and have both implanted in a replacement at the same time.

They explained how it works.

Watch the Victoria Derbyshire program on BBC Two and BBC News Channel from 10:00 to 11:00 GMT – and See more of our stories here.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.