Britney Spears confesses she was shocked when she discovered she was pregnant with her second child. The singer admits it took the approval of husband Kevin Federline before she could get excited about the prospect of childbirth again, less than a year after son Sean Preston was born. She says, "I was shocked because it was so soon and I was a little scared at first. Yes, I was very surprised. "He (Federline) was a little shocked too. But his shock turned to excitement and he said, 'Let's just go for it.'"