Anna Jennings, mother of two, was promised that the Essure birth control device was a safe, quick, and easy option for family planning. Sadly, it turned out to be anything but. Thousands of women are now suffering from severe side effects and complications they allege were caused by Essure. These include allergic reactions (to the nickel contained in the Essure coil), chronic pain, excessive bleeding, miscarriage, and ectopic pregnancy.