Congratulations to Geri Halliwell and her husband, Christian Horner!

The 44-year-old former Spice Girl is pregnant with her second child, she announced on Instagram on Monday.

"God bless Mother Nature #mamaspice," she captioned a drawing of a pregnant woman.

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Geri is already a mother to her 10-year-old daughter, Bluebell Madonna, from a previous relationship with screenwriter Sacha Gervasi. Geri got married last May to Christian, the Team Principal of the Infiniti Red Bull Racing Formula One team, in a lavish wedding in Woburn, Bedfordshire. The couple went public with their romance in March 2014.

Christian also has a daughter, Olivia, from a previous relationship.

WATCH: Geri Halliwell's Gorgeous Wedding Dress Is EVERYTHING

In August, Geri candidly opened up about her battle with bulimia for the OWN network's Where Are They Now? series. Geri said she was trapped in a secret cycle of dieting, comfort eating, and purging as the Spice Girls shot to fame in the '90s.

"I felt much more conscious of myself, my body weight," Geri said. "We all used different tools to get by, coping mechanisms. For me [it] was controlling my body weight."

Thankfully, with the help of 12-step meetings, she was able to beat her eating disorder.

Watch below: