"i chose paragard because i had rough side effects from hormonal birth control. i was also not sure if i wanted more children, probably not due to my age and health problems i had with my last pregnancy, but just in case i changed my mind i didn&#039;t want to choose something permanent. imagine my surprise when i became pregnant on paragard. an ultrasound showed it was correctly positioned. i was relying on paragard to be as effective as advertised. now, looking online, i see that thousands of other women have had this happen as well."