Last week, Corey Maison the transgender teen from Detroit received a life changing gift inside a little pink and white box, her first dose of estrogen. Her emotional response that was caught on camera by her mother, Erica Maison, has gone viral.

Corey Maison finding a package filled with the first dose of hormones means she has been given the medical go ahead.

“It was one of the best moments of my life,” Erica said in an interviewed with ABC News. “I can’t remember a time I’ve been so elated in my life other than when I had my children.”

On September 29 after waiting for two-and-a-half years, she finally got her estrogen. Her mother who picked it up while she was in school said she had no idea, it was meant to be a surprise.

Erica, has been waiting for months for the readiness letter to be finalized and sent to Chicago, so she had no idea  nor a timeline of when it will actually happen.

Her mother said that when Corey was in the fifth grade, she was bullied so badly her mother made the decision to pull her out of public school and begin homeschooling.

It wasn’t until Corey was 11- years- old that the mother daughter duo came across a video of transgender YouTuber Jazz Jennings and everything suddenly clicked. “She said, ‘Mom, I’m just like her, I AM a girl.’”

Her mother said that the things have gotten easier for them when she and Corey found the gender clinic at Lurie Children's Hospital in Chicago, where Corey went through hormonal treatments to stop the onset of male puberty.

Now with her estrogen treatments, Corey will be able to start female puberty.

Erica told ABC “I want them to open their hearts and accept their children for who they are, not for what gender they do or do not identify with. Their hearts do not change because their outer appearance does,” she said. “We all just want to be loved and accepted by others. And that's all any transgender child wants, is to be loved and accepted fully by their parents.”