“Is it good to take the birth control shot just to gain weight? Also, is it a lot easier to get pregnant while taking the shot? Can you get pregnant the same month that you get your shot? Is it okay for you to have unprotected sex while taking the shot? If you want to, can you stop taking the shot and get on the birth control pill?”
A: The “shot” is not to be used solely for the purpose of weight gain, as not everyone will gain weight on the shot. The shot is 99.7% effective and a person only needs to use a condom as a back-up method for one week following their first shot. If after starting the shot someone wants to switch methods, that is typically done around the time the next shot is due.