Chalise Smith, 50, from Utah, offered to help daughter Kaitlyn, 24, have a baby

Kaitlyn, from Texas, can't conceive due to condition called Sjogren's Syndrome

Suffers from endometriosis, but managed to have son Callahan before diagnosis 

Chalise agreed to serve as Kaitlyn's surrogate for her second child with husband Miguel; she had an embryo implanted via IVF and is due to give birth in May

A mother-of-eight is pregnant with her own grandchild after stepping in as a surrogate for her daughter, who was struggling with infertility.

Chalise Smith, 50, from Utah, offered to be a surrogate for her daughter Kaitlyn Munoz, 24, after she was told she could no longer have children due to a devastating auto-immune disease.