Their daughters two-year-old Tully and four-year-old Tilba have one of the two types of dwarfism, so when Charli fell pregnant with her third baby they waited to find out which of the four possibilities their baby had.

Charli explained in her Instagram post:

1. We would have a baby of average height
2. Our baby would have Achondroplasia, the same form of Dwarfism as me.
3. Our baby would have Geleophysic Dysplasia, the same form of Dwarfism as Cullen.
4. Our baby would inherit both genetic variations, know as “double dominant dwarfism”, which from all professional medical evaluations would be fatal upon birth. I would have had the choice should this occur to carry on and see how things go, or to terminate the pregnancy.