My third pregnancy was the big shocker considering i was on the 5 year iud. I was on it for 5 months before i got pregnant. I went in to the hospital for a bladder infection and they wanted to do a pregnancy test and i told them no need i was on the iud, well the doctor insisted and sure enough i was 10 weeks pregnant. It really was a shock! But i call him my miracale baby becasuse really the odds were so slim! I couldn't imagine life with out him!