Amber Rose is very pregnant ... and she wants everyone to know it!

The sexy model and future Wiz Khalifa baby mama put her growing bump on display this weekend on Twitter, sharing two revealing shots of her expanding belly.

And no ... she's not naked.

"I swear I have shorts on in this pic but my belly is so big u can't see them," she posted along with the suggestive shot of her stomach and legs (left).

According to Amber, she's currently 28 weeks along.

Rose isn't the only pregnant star showing off some skin -- check out the nude pic Marisa Miller took for Allure here.

And see more expecting stars in the gallery above!

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