Anne Vyalitsyna is engaged.

Anne Vyalitsyna [Twitter]

Anne Vyalitsyna [Twitter]

The 30-year-old model, known professionally as Anne V, took to Twitter to announce she is engaged to Adam Cahan, who is senior vice president of mobile and emerging products at Yahoo!

Anne posted a picture of herself wearing a diamond engagement ring and wrote: "Yep this happened."

On her birthday in March 2015, Anne revealed she was pregnant by posting an image from her ultrasound scan on her Instagram account.

She wrote alongside the picture: "On this birthday I couldn't feel luckier, happier & more grateful. @Adamcahan & I couldn't be more excited!"

The pair welcomed daughter Alaska last year and Adam already has two daughters with ex-wife Alice Larkin.

Following the engagement announcement, Anne shared a picture of her and Adam with the three girls and captioned it: "Luckiest girl in the world. #modernfamily (sic)."

Anne - who is best known for gracing the pages of Sports Illustrated's Swimsuit Issue - previously dated Maroon 5 frontman Adam Levine.