Spears, 39, announced last week that she was going to marry her long-term boyfriend, Sam Asghari.
After deleting her Instagram account, Spears told fans on Twitter: “Don’t worry… I’ll be back soon.”
She has used her accounts to update fans on her battle to end a 13-year conservatorship that has controlled both her personal life and finances.
The conservatorship arrangement was imposed in 2008, when concerns were raised over her mental health.
According to several US outlets, the singer shared a post on Instagram on Tuesday in which she told her fans: “I’ve waited 13 years and counting for my freedom.”
She also thanked the Free Britney movement, a campaign by fans to release her from the conservatorship.
Her Instagram account was later removed, concerning fans.
The star later confirmed the break on Twitter.
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