That’s no Halloween costume nor is it a prosthetic baby bump! Jessica Simpson has finally confirmed the worst-kept secret in Hollywood – that she is expecting a baby with fiance, former NFL’er Eric Johnson. Simpson tweeted a photo of herself in her super cute Halloween costume, an extravagant, tightly wrapped mummy outfit that emphasized her bulging baby bump! She’s a hot mummy, isn’t she? We love the wild blonde ringlets and smoky makeup.

Simpson, 31, posted “Announcement!” via Twitter and then revealed via a play on words: “It’s true – I’m going to be a mummy!” Her hands are protectively clutching her baby bump, Beyonce-style!

Rumors about Simpson’s pregnancy have been circulating for months, especially when photos of her with an expanding mid-section began to surface. She continued to wear form-fitting clothing, further showing off that bun in the oven!

This will be Simpson’s first child. She and Johnson have been engaged since November of last year.

Simpson has had a rocky romantic road in the public eye for the past few years. Simpson’s famous ex Nick Lachey beat her to the altar, marrying longtime gal pal Vanessa Minnillo over the summer. Simpson has sprinted past him and will start a family first!

Her other big name ex, Dallas Cowboys quarterback Tony Romo, is also expecting a child — a boy, due in April — with wife Candice Crawford. Romo famously broke up with Simpson the night before her 29th birthday in July 2009.

We’re glad Jess is finally happy, healthy and with child! PopCrush extends our congrats to the mummy-to-be.

Whatever she has, it’s going to be a stylish little bugger!

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