After weeks of keeping quiet and walking around in outfits that resemble moo-moos, Jessica Simpson is stepping out in tight shirts and leggings showing off her growing baby bump. She hasn't officially confirmed the pregnancy news, but she doesn't need to when she's walking around with a bump this big!

An OBGYN speaking with Radar Online, believes Jessica may more than half way through her pregnancy.

"She looks to be 26 weeks, which is around 6 months. It is definitely a pregnancy and not weight gain. You can by the shape of her abdomen, her belly wouldn't be that rounded if it was just fat."

Jessica has been holding off for a fat $500,000 paycheck from one of the mags to confirm her pregnancy, but nobody is willing to pay because as one source points out, Jessica doesn't have the 'star power' to secure that fat paycheck.

There's no denying the bun in the oven now, so she might as well take whatever cash she can get, and secure a deal for the first baby photos.

Photos: WENN