What is the Injection?

-Contraceptive Method -Has Progesterone in it -Is very Successful [Used correctly 99%] -Doesn't protect against STI's and has Side Effects -It basically starts the Production of Thick Cervical Mucus [located at the Entrance of the Uterus] which means Chances of Sperm entering is Lower; also prevents Ovulation [Has Progesterone in it] -Lining of Uterus also Shrinks, which lessens the Chance of a Fertilised Egg implanting