you guessed it, pregnant. I dont have anything bad to say about it other than I hope she doesn't go down the rocky road that Britney has, I dont think her age is going to automatically deem her an unsuitable mother and I wish her the best, but I thought accywebbers might want to discuss it further.
Not the best source but a source all the same, there are many:
The Associated Press: Jamie Lynn Spears Says She's Pregnant