Plenty of couples who can't conceive naturally seek the help of IVF in order to fulfill their dreams of having children, but one gay couple in London had anything but a smooth experience after a huge mix-up at the largest sperm bank in Britain.

They purposely went back to the same facility when they were ready for their second child, because they wanted to use the same sperm donor they had used with their first baby so their kids would be biological siblings. However, they were ultimately given sperm from the wrong donor,