Fair warning: this video will probably make you feel an awful lot of feelings and also cry.

Wedding photographers Matt and Pacey Harris captured on film the moment bride Brooke Blackledge opened a letter from her mother that had been written 20 years previously.

When she was 18-months old asleep in her baby bed her biological mom, wrote her a note to be opened on her wedding day.

Her adoptive parents found out they were not able to have children of their own and adopted Brooke's older brother Brian, and then 11 years later Brooke. Her mom kept the letter unopened and unwrapped to give to Brooke as a gift on the big day.

In the note, which her mom wrote on a piece of her own wedding dress, she told Brooke how much joy her birth had brought to the family.

"Being adopted, I wanted her to know how much we loved her and I thought it would be extremely precious when she opened it up on her wedding day.”

Brooke married her childhood sweetheart Tyler Zugg in March and her adoptive parent’s touching surprise was all captured on camera.