Jessica Simpson
Jessica Simpson finally announces her pregnancy on Halloween. She is engaged to NFL player Eric Johnson. BeautyMint.com

Not to be outdone by the news of Kim Kardashian and Kris Humphries' divorce, Jessica Simpson added to Monday's not-at-all-surprising headlines with the announcement that she is indeed pregnant.

In spite of rumors that Simpson was hosting something of a bidding war for an exclusive on the pregnancy news, Jessica made the announcement herself, in a low-key manner: She tweeted a link to a photo of herself in a (pretty awesome) mummy Halloween costume, with the caption: It's true! I am going to be a mummy!

Photos of what appeared to be a growing baby bump over the last several weeks have prompted strong suspicions that the 31-year old is pregnant.

But it's not the first time a particular outfit has prompted pregnancy rumors -- the star has been plagued with them for years.

Simpson is engaged to Eric Johnson, but a wedding date has not been set.

Stay tuned for more news on the baby's gender and due date, which have not yet been revealed.