The contraceptive injection is a very effective contractive method and is known as a long-acting reversible contraception (LARC).
There are three types of injection.
Depo-Provera which is usually given in the buttock (top of your bottom) every 12 weeks
Noristerat given every eight weeks in the buttock
Sayana Press given every 12 – 13 weeks and is injected just beneath the skin at the front of the thigh or abdomen.