Son surprises biological mom with reunion after she put him up for adoption 35 years ago (video)

The video of this reunion between the son and his biological mother went viral on social media.

Inside Edition shared a video of the reunion of Stacey Faix and her biological son, Stephen Strawn. Faix attended the Pittsburgh Half Marathon to run with her fellow members of 'Team Red, White, and Blue,' a social organization that supports veterans.

It had been 35 years since she gave her son up for adoption, so it was the last thing on her mind on the day of the marathon.

Faix received a handwritten note from Strawn that read, 'It’s been 13,075 days since you last saw me. I didn’t want to make you wait one more.'

After she read the letter, Strawn came walking towards her. Faix exclaimed with joy and the mother-son duo shared a long-awaited embrace. Read more about Stacey Faix and Stephen Strawn on our Twitter account @amomama_usa

Faix got pregnant at the age of 15. She panicked and was not sure what needed to be done. She was clear she would not be able to take of the child and was not ready to become a mother.

Faix gave birth to a baby boy, but immediately put him up for adoption. She gave up her little boy without holding him even once. A few years after the birth of her son, the boy's records were lost in a flood.

It seemed like the happy ending of 'son meeting mother' would never come to be. In November 2017, a new law went into effect that would give this story a happy ending.

All this while, Faix was not aware of this law and its impact this law would have on her life. The new law allowed adopted children to obtain birth certificates with the names of their original birth parents.

Just before the marathon was set to begin, Faix was standing at the starting line with her family when she received the mysterious handwritten letter. It was a moment Faix dreamed of her whole life.

Strawn shared that the moment was a very emotional one for him. He mentioned Faix telling him that she never had the opportunity to hold him. It broke his heart, and the duo shared one of the longest embraces when they met.