Aaaand I was right: pointless.
In other news, today is the 45th anniversary of the birth control pill in America. It was only legalized in Japan in 1999.
Other contraceptive options you may not have heard about:
Essure: permanent sterilization for women without abdominal surgery
Gynefix: a frameless IUD
Seasonale: have 4 periods per year
The Morning After Pill You Already Have: how to use standard birth control pills as emergency contraception
P.S. There is now a warning on Depo Provera that it may cause irreversible bone loss. If you're a Depo user, consider switching.