Has anyone here gotten pregnant after a bilateral tubal ligation?

I didn't start my period last month, and began having preg symptoms, despite my btl in Jan 05 when I had my second child. So I went ahead and took 4 pregnancy tests like a maniac last week and 1 came back positive. I am going in the morning to my doctor for bloodwork, but would love to make a friend who has experienced or experiencing this wonderful, yet shocking event themselves.