Okay, now we're just sailing around in the doldrums of the Idiot Zone again.
All prescription contraceptives require preparation, planning, and for oral contraceptives, a certain period of regular use before sex is safe.
It doesn't matter if it's free or a million dollars.
Impulsive "point of use" contraception is called a condom, and they can be purchased for next to nothing in almost every store in the country. Nobody needs "condom insurance."