Gwen Stefani and Gavin Rossdale’s former nanny is pregnant.

The nanny who had an affair with Gwen Stefani’s husband Gavin Rossdale is now expecting a baby of her own.

Last year it was revealed that Mindy Mann had a three-year relationship with Rossdale while he was still married to the No Doubt singer.

Mann had been employed by the couple to care for their three children, Kingston, 9, Zuma, 7, and Apollo, 2.

Yesterday, Mann's sister Nicole Jennifer Mann took to Instagram to announce the pregnancy by sharing a photo of a pregnant women hiding behind a giraffe balloon, with the hashtags #auntynoodle and #nephew.

It is believed the child was fathered by Mann's boyfriend Spencer Gutcheon.

#auntynoodle #nephew @mindy.hope @carlyfradge @jennifermann3

A photo posted by @nicolejennifermann on Mar 3, 2016 at 3:45pm PST

Nicole Mann had previously shared another Instagram photo of women kissing Mindy's baby bump, and she also shared the photo on Facebook with the caption: “I’m excited to announce I’m going to be an aunty to another beautiful baby!”

After uncovering her husband's infidelity in February 2015, Stefani filed for divorce, citing irreconcilable differences.

While Mann and Rossdale's relationship also appears to be over, in November Stefani announced she was dating fellow Voice coach, Blake Shelton.

We hope Blake treats Gwen better than her ex-husband did.

TAP on the image below and scroll through the gallery for pictures of Gwen Stefani....