Beyonce Rubbing Her Belly During Bev Hills Shopping Trip

Beyonce's done hiding -- she took the twins out for their first Bev Hills shopping trip.

After several months, we think, of keeping her pregnancy under wraps, Bey went out Thursday in all her pregnant glory for a shopping trip to Barneys New York.

As we first reported, she's still planning to play Coachella in April, but still NOT revealing how many months along she is. We can all debate again with these pics. We're guessing the black shirt's by design ... to keep us guessing.

Beyonce wasn't lugging any shopping bags. She's got assistants and bodyguards for that. Besides, the queen's carrying enough these days.