As someone who was forced to go on Depo before deployment, highly recommend this option be researched clearly and thoroughly with your mom and doctor. It could be wonderful and possibly not so wonderful depending on many factors. I and many of my friends who never had issues with the pill found the sound effects rather harsh. This is obviously a very personal decision for you to make and I would never suggest one way or another as I am not a doctor. Also, once you get to the Academy, depo is sort of a pain. The Navy required a pregnancy test before each injection (not sure if this has changed or not). So this normally resulted in two trips to the doctor to get tested then get the injection, something I always found to be a pain in a busy schedule. Good luck in your decision. Trust me 1000s of women have made it through with many of these options, we all dealt with it and you will be fine. There is almost always a female detailer in your platoon, if not, at least in the company. If any issues arise during PS, trust me, they will help you out.