Based on the NHS The contraceptive patch has been proven to be 100 percent efficient when it is used properly. In normal use it’s closer to 90% Trusted Source efficient.
A person could place an anti-conception patch on:
- to the back
- upper arm
Each patch for 3 weeks after which they can remove it for one week to permit menstrual cycles. There is a chance of irritation to the skin.
Contraceptive shots (Depo-Provera) is usually administered by a doctor each 12 weeks. As per the CDC If used properly and as long as one receives their shot at the right time, it’s well over 90% trusted source effective in stopping pregnancy.
As per Planned Pregnancy, it may take as long as 10 , months or more for fertility levels returning to its normal following people stop receiving shots of contraception.