This little t-shaped device is 99% effective, and only needs to be replaced every five years. You go to a short visit to the doctor to evaluate if your state of health makes you a good candidate for Mirena.
Paragard is very similar to Mirena. It is a t-shaped device that is placed in the uterus to block pregnancy. The main difference between Mirena and Paragard is that Paragard has absolutely no hormonal release.
A small rod is inserted into the arm that will release hormones to prevent pregnancy. Nexplanon is 99% effective. Your period will probably be lighter after the treatment, but it may be a bit irregular as well.
An injection of progestin is made into the hip or arm every 12 weeks to the patient. This method is around 92% effective. It requires that the patient visit the doctor ever 3 months to get the next shot.