Erica Morales, 36, and her husband Carlos had spent years trying to conceive a baby and complete their family together.
Finally, she managed to conceive using IVF - and was soon happily preparing for the imminent arrival of her quadruplets.
But, one month before her due date, Erica went into hospital with a swollen foot and high blood pressure.
She wrote on Facebook: "He [the doctor]said I have to get admitted until delivery. It's been down lower today but it's too late.
"He will keep me and he ordered some labs.
"He will push deliver up or stall it to to 34 weeks. I'm 31 tomorrow. He said I did phenomenal. A poster child for quads.
"He wish they could all go this way but this last part we have to do it carefully because u can stroke out with bad blood pressure. I'm sure I won't but he looking at how to finish things."
After explaining that it would definitely be a premature birth, the excited mum-to-be added: "I always want more but sometimes you just have to sit back and thank God for blessing up to this point and put it fully in his hands. Thanks for the prayers and everything else."
Not long after, Erica gave birth to four healthy children; three baby girls and one tiny little boy.
But, heartbreakingly, Erica - whose dreams of becoming a mum had finally come true - died just hours after the delivery.
Doctors have launched an instant investigation to determine a cause of death which is as yet unknown.
Her cousin and best friend Christina Todman told Fox 10: "This is all they wanted, to have this family, to make their family complete. It's like that fairytale story.
"It is so hard to know she fought so hard for her children. She will never get to brush their hair, hold their hand, watch them get married, none of that will ever happen for her.
"She never got to hold them, she never got to see them."
Friends and family have set up a GoFundMe page to help raise money for Mr Morales, who now faces bringing up Paisley, Tracy, Carlos, and little Erica on his own.
If you would like to make a donation of your own, please visit***http://www.gofundme.com/kbkpag now.***