Whoa baby! Christina Aguilera took to Twitter to show off her growing belly and by the look of it we think baby number two will be here sooner than later! And she isn’t the only proud pregnant star; Snooki has been keeping fans up to date with her pregnancy and her latest swimsuit pic is too cute! First time mom-to-be Kelly Rowland is making sure to keep up with her fitness! Kelly showed off her baby bump in a sports bra and yoga pants on Twitter. Check out all the photos here!