Model and singer Paulina Gretzky has revealed that she is expecting her first baby with boyfriend and sportsperson Dustin Johnson.

The model, whose father is Canadian ice hockey legend Wayne Gretzky, took to Instagram Wednesday to share the news, reports contactmusic.com.

The 25-year-old showed off her growing baby bump in a photograph that she uploaded on the website.

In a caption alongside the picture, she wrote, "@djohnsonpga & i are so excited to finally share with you all our amazing news... we're having a baby!!"

Gretzky has been dating golf player Johnson since 2012, and they announced their engagement on Twitter 2013.