Lance Armstrong's fifth child already tweeting from the womb

Cycling champion Lance Armstrong will be a fifth-time father -- and baby-to-be is already tweeting up a storm.

The seven-time Tour de France champ confirmed the baby news via his Twitter account (@lancearmstrong) Thursday (April 29) night by addressing some mysterious tweets from @Cincoarmstrong:

Getting ?'s today about someone I'm following, a certain @Cincoarmstrong. What to say? Yet another blessing in our lives. I cannot wait!

Baby Armstrong is apparently tweeting from the womb as @Cincoarmstrong. His/her first tweet surfaced on April 20:

I got 2 arms, 2 legs, a nickname, and i'm 2 inches long. See y'all in October..

Then five days later:

I'm now the size of a lemon, 3.5 inches long, and weigh 1.5 ounces. And oh yeah, I'm on Twitter.

Thursday's head-scratching tweet from Baby Armstrong:

Working on my avatar. It's slightly complicated. For me at least.

Daddy Armstrong confirmed the news to his hometown paper, Austin American Statesman, which also confirmed that the names found on @Cincoarmstrong -- Jack and Olivia -- are in fact possible names for the fall baby.

This will be child No. 2 for 38-year-old Armstrong and girlfriend Anna Hansen. Little Twitter-happy Cincoarmstrong will join 10-month-old Maxwell Edward, Armstrong's son with Hansen, as well as twins Isabelle and Grace, 8½, and son Luke, 11, his children with ex-wife Kristin.

Follow Zap2it, Zap2itChristine on Twitter and Zap2it on Facebook for the latest TV, movie and celebrity news.

More celebrity baby dish:

Sandra Bullock to raise her son Louis in New Orleans
Sandra Bullock's 'Blind Side' baby wrapped in secrecy
Sandra Bullock adopts baby, files for divorce from Jesse James

Photo credit: Twitter, Getty Images