Jamie Lynn Spears is pregnant!!!

Oops!!! Jamie Lynn Spearsis pregnant!!! The 16-year-old "Zoey 101" star and sister of Britney, told OK! magazine that she's pregnant and that the father is her boyfriend, Casey Aldridge.

"It was a shock for both of us, so unexpected," she said. "I was in complete and total shock and so was he."

Spears is 12 weeks along and initially kept the news to herself when she learned of the pregnancy from an at-home test and subsequent doctor visit, she told the celebrity magazine, which hits stands in New York on Wednesday and the rest of the country by Friday.