Could someone be pregnant and truly not know it? As crazy as that sounds, it's not such a far-fetched idea for a woman on the pill, using an IUD (intrauterine device), breastfeeding, or using other highly preventative birth control measures. At some point, she'll probably tune into the fact that she's carrying a baby, but it may take her a little while to entertain the notion of buying a pregnancy test. One mother of two declared her pregnancy days a thing of the past and chose to have an IUD implanted as it is one of the most effective contraceptives. Much to the woman's surprise, she discovered she's expecting her third child! A blessing in disguise, the mother was eventually thrilled with the "mishap," but is now considering a vasectomy for her husband. More common than it seems, many moms think they are finished having babies and find themselves sporting a bump when they least expected it. Did you or anyone you know get pregnant while practicing "safe sex"?