birth control
"So paragard worked great for 3 years till I got pregnant with twins at the worst time in my life. Just got back to work that I now I have to quit soon. I did my yearly check ups and 6 months before I got pregnant was my last exam and it was perfect. Well the ultra sound and doctor both said the IUD was in place perfect and had no idea how we got pregnant... do not take this method unless u want pregnant."