While her lawyer was back in court today rescheduling the deposition and next custody hearing, Britney went shopping for Christmas presents for her boys. Back to that in a second, but wait a minute—does that OK! cover say that Britney's 16-year-old sister Jamie Lynn Spears is pregnant!? TMZ has a few more details from the article including that Brit herself doesn't even know yet and the father is Jamie Lynn's longtime boyfriend Casey Aldridge. Wow, just wow. There's another Spears baby coming our way? If it's true, talk about a shocking pregnancy. As for that custody hearing for the big sis, it's set for February 19 and Brit has to actually show up and give her deposition sometime before then. Seriously though, who would have thought that for today, Britney's not the biggest news-making Spears girl around?

UPDATE: Nickelodeon has issued the following statement: "We respect Jamie Lynn's decision to take responsibility in this sensitive and personal situation. We know this is a very difficult time for her and her family, and our primary concern right now is for Jamie Lynn's well being."

Check out this slideshow of little Jamie Lynn Spears through the years