Britney Spears pregnant, but not with David Letterman's baby

One thing about me is I am in constant need of a celebrity fetus to monitor. Katie Holmes kept me occupied for like 10 months, and thank God Britney's got me covered for at least another 5 or 6! She confirmed her second pregancy on The Late Show with David Letterman. I knew she wasn't just fat!

Now, let's discuss this. How did Britney go from being the biggest pop star on the face of the plant to being in a constant state of pregnancy? Did I miss the memo? Are she and K-Fed devout Catholics? And someone please send this man's sperm to a medical lab where it can be examined, and the root of its super potency can be determined. Four kids at 28? Seriously? Does he plan to sell them as slaves later on?
[Wash Post]
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UPDATE: Video is after the jump