After 24 hours of labor that was mentally, emotionally and physically exhausting, Teresa Mendoza met her daughter. Then, just one day after her due date, the baby died. "Sylvia was my first pregnancy," the Washington-based nurse tells TODAY.

com , adding that her pregnancy was routine. "She had dark hair, long fingers and big feet; we like to think she would have been a dancer," Mendoza recalls. "Our families were able to be there, meet and hold her, celebrate her existence and grieve her death until we said goodbye.

" This was not Mendoza's last pregnancy, though. When she last spoke with TODAY.com, she was pregnant with her fourth child, her "rainbow baby.

" A “rainbow baby” is a term used to describe children born after a miscarriage, stillbirth or neonatal death, like a rainbow at the end of a storm. The American Pregnancy Association says rainbow babies symbolize "hope, healing and something beautiful after a dark and turbulent time. This is much like the rainbow’s symbol of promise and light.

" There is even a Rainbow Baby Day: Aug. 22. But pregnancy after loss isn’t all sunshine and rainbows.

Many women experience a range of emotions, from fear to joy and everything in between. "One of the biggest misconceptions is that parents no longer grieve upon a subsequent healthy pregnancy," Dr. Rayna D.

Markin, a clinical psychologist and associate professor of counseling at Villanova University, told TODAY Parents. "On the contrary, subsequent pregnancies can re-trigger a .