Taking to social media, Miranda - who is due in a matter of weeks - posted a shot of herself wearing a flowing flower-patterned dress while standing in a sunflower field.
"Found a heavenly field of sunflowers 🌻🌻🌻 Truly brightened my day," the Aussie model captioned the post.
The 35-year-old posted yet another beaming shot on Instagram, cradling her baby bump in a blush pink midi-dress with a bright yellow lemons print.
Miranda captooned the pic with three emoji: "🍋🤰🏻🌸"
Miranda has an 8-year-old son Flynn with ex-husband Orlando Bloom, and a 1-year-old son Hart with current husband, Snapchat founder Evan Spiegel.