Whats a depo shot? What does it do?
Sigh...
The Depo-Provera shot is a hormonal birth control that only contains progestin and it is injected every 3 months. It inhibits follicular development and prevents ovulation and it inhibits sperm penetration by changes in the cervical mucus. Estimated perfect rates of failure is 0.3%, in regular use it is about 3%.
