The musician, who is married to Bruce Jenner's son Brandon, uploaded a shot to Instagram showing a Starbucks coffee cup balancing on her stomach.
"I could get used to this pregnancy thing," she joked.
Leah and Brandon announced this week that they're expecting their first child together. They shared their happy baby news alongside a sweet image of them cradling Leah's blossoming baby bump.
The couple perform as indie pop duo Brandon & Leah and have appeared on Keeping Up With The Kardashians. A song of theirs was also used as the theme tune for Kourtney & Kim Take Miami!
Brandon and Leah married in Hawaii in 2012, with Brandon's half sisters Kendall and Kylie serving as bridesmaids. His brother Brody, who starred in The Hills, was best man
Cute baby and dad moments!
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