Some [methods are much easier to hide](https://www.bedsider.org/features/105) than others. The shot and the implant are invisible, so nobody will know you’re using birth control. The IUD is also very discrete, so that's another possibility, though some guys may be able to feel the strings during sex. And if you are looking for a permanent solution, sterilization surgery is also undetectable, but there may be age restrictions and waiting periods for this procedure.