The 23-year-old is expected to hit the mega total by the end of next year after fans swarmed to her profile page on the subscription site Only Fans,
A source has now claimed she is expected to earn the massive total within 18 months.
The source told The Sun: "Jane has 1,500 subscribers paying £30 a month to see her profile.
“Men can then pay an additional £50 for topless images. She is set to make another million by the end of 2020. It’s crazy, completely unexpected.”
When asked about the total, Jane told The Sun: "I seem to get whinged at regardless of what I do.
"When I didn’t work I would have people thinking I didn’t deserve my money.
"Now that I do something online and earn money I still get whinged at. I can’t win.”
The Mirror told earlier this year how the lotto winner was selling topless snaps online to men.
The 23-year-old - who netted a £1million EuroMillions jackpot when she was just 17 - explained she was flogging racy images for benevolent purposes.
"Feel so empowered! I've been selling topless pictures online to men desperate to see my boobs for £50+ & donated the money to charity," she tweeted.
"I feel like RobinHood, taking from wealthier men wanting to perve & giving to less wealthy who want to eat. #Empowerment #Robinhood."
Jane reportedly wanted to sue EuroMillions, claiming the win had ruined her life.
“I have material things but apart from that my life is empty. What is my purpose in life?” she told the Sunday People.
"I thought it would make [my life] ten times better but it’s made it ten times worse.
"I wish I had no money most days.