Aggregate Demand Curve. The vertical axis for an aggregate demand curve measures price level, which differs from price in that it represents the average price of goods or services in the economy as a whole. This number factors in items such as changes in the number of consumers, changes in tastes, and changes in income.
The Depo-Provera shot is a highly effective birth control method. Women who use it correctly have a risk of pregnancy thatâs less than 1 percent. However, this percentage increases when a woman doesnât receive the shot at the recommended times.
A Brigham and Women's Hospital answered. Depo-Provera is a hormone injection used for birth control. It is administered starting within the first five days of your period, then every 12 weeks thereafter. Working similar to a birth-control pill, Depo-Provera has the hormone progestin, which changes the lining of the uterus, making it difficult for sperm to fertilize an egg. In the weeks between shots, you do not have to use other contraceptive methods. It is 99% effective in preventing pregnancy.