Only child discovers that she has THIRTY siblings after creating a 23andMe ...

For the first 39 years of her life, Shauna Harrison was an only child. 

Then one day she logged on to her forgotten 23andMe account and everything changed. 

The DNA testing site revealed that Harrison had seven siblings with the same donor father. In a matter of months, that number went up to 17. 

Now Harrison, 41, has found 30 siblings, and she believes more could continue popping up any day. 

Shauna Harrison (pictured third from left) grew up an only child. Now, at the age of 41, she has found 30 of her siblings

Shauna Harrison (pictured third from left) grew up an only child. Now, at the age of 41, she has found 30 of her siblings 

Harrison (pictured) created a 23andMe account after her mother told her she was actually conceived via a sperm donor

Harrison (pictured) created a 23andMe account after her mother told her she was actually conceived via a sperm donor 

'It's a very weird feeling when you meet, because you know you share DNA with them,' Harrison told CNN. 'We bond in a very different way.' 

It wasn't until she was 27 that Harrison even learned the man who had raised her wasn't her biological father. 

Harrison, who has a PhD in public health and degrees from Stanford University, UCLA, and John Hopkins, had been dealing with some 'minor health issues' in her late twenties.  

As she continued to ask questions about her family's health history, her mother couldn't keep the secret any longer. 

'As it turns out, my paraplegic father could not have kids,' Harrison wrote in a personal essay for mindbodygreen. 

'I had never questioned it, because really - who wants to know how they were conceived? As it turns out, I had been conceived via sperm donor.' 

Harrison revealed that learning her dad was not her biological father at the age of 27 was 'overwhelming and weird'. 

Harrison forgot about the account for four years. She logged back on in 2017 and switched her profile off anonymous. Then, the siblings began to stream in (pictured with some of her sisters)

Harrison forgot about the account for four years. She logged back on in 2017 and switched her profile off anonymous. Then, the siblings began to stream in (pictured with some of her sisters)

Harrison discovered that most of the siblings were in contact and, like her, resided in the San Francisco Bay Area

Harrison discovered that most of the siblings were in contact and, like her, resided in the San Francisco Bay Area 

She was left with a million new questions about this 'mysterious, anonymous donor who helped give you life but is no longer in your life'.  

'Every once in a while, I would try to imagine what this donor's ethnicity was or what health issues might be in his history,' she revealed. 

'It sounds morbid, but multiple degrees in public health created an increased curiosity and concern about my health history and thus the donor's.' 

So in October 2013, Harrison signed up for 23andMe. Her results at the time were underwhelming. 

'It wasn't a huge reveal of information I didn't already know,' she wrote. 'I don't remember any close relatives showing up at that point. The little bit of health information didn't have any glaring issues or anything worth investigating further.' 

She closed the site and, for the next four years, pushed it to the back of her mind. 

But everything changed when her stepdad happened to mention the DNA testing kit during a conversation on Mother's Day in 2017. 

'I remember saying, "Oh, I should go back and look at that now that they've gotten so

read more from dailymail.....

PREV See the moment two buskers get into a heated argument over their favoured ... trends now
NEXT Alec Baldwin was offered lenient 'Rust' plea deal that would have given him a ... trends now