Should I be worried about inbreeding when using donor sperm?
You do not need to worry about the partnering of two donor-conceived children from the same sperm donor. The risk that this will happen is extremely low, and the risk may only increase by a few percent compared to normal procreation.
Cryos follows the national quota which defines the number of families that can use a donor in a given country. This helps to ensure that the risk of inbreeding remains extremely low.