A California woman who made a lottery mistake ended up winning $14 million last week.

Thuan Le, a single mother with four sons, always bought her lottery ticket every week on Wednesday from a local CVS store near her home, according to The Christian Post. She explained that she always spends $5 - $4 on Powerball tickets and also spends $1 on a SuperLotto Plus ticket.

However, Le last week accidentally put $6 into the machine instead of the usual $5. Instead of trying to get her $1 back, she instead decided to purchase an extra SuperLotto Plus ticket.

The extra ticket ended up winning her $14 million.

The California Lottery posted on its website: "She accidentally put $6 in the self-service terminal and bought her tickets. When she realized she still had $1 in credit, she thought, 'I might as well get another SuperLotto Plus ticket.' That 6th ticket was the winner."

"When she ran her SuperLotto Plus ticket through the terminal and realized she had won a $14 million jackpot, she ran screaming out of the store!" the press release added.

Her sons did not believe that she really had a winner.  

"We thought she was joking," her son told California Lottery officials.  "But we thought would she really joke like this? My older brother said, 'Yes, she would.' "

Le plans to use her lotto win to buy a house, travel and visit her parents in Vietnam, according to International Digital Times.