Miranda Kerr‘s got that summer pregnancy glow!

The third-time mom-to-be, 36, is beaming in a sun-soaked snapshot shared to her Instagram account on Sunday, carrying a white bag and wearing matching high-heels.

Throwing a wide smile at the camera, Kerr let her hair hang straight down over her shoulders, placing a hand over her baby bump as she showed it off under a pretty lemon-patterned midi dress.