Intrauterine devices (IUDs) are known as one of the most convenient and effective forms of birth control, but it’s true that the IUD insertion process can be unpleasant, uncomfortable, or downright painful for some people. The IUD itself is a small, flexible, T-shaped birth-control device that’s inserted directly into your uterus. For a lot of people, that alone is (understandably) a little scary. The best way to get more comfortable with the concept and to prepare for the big insertion day is to get familiar with the process. If you’re nervous about an IUD insertion, you might be wondering what can you expect from the IUD insertion process and how can you prepare. You can calm some of your nerves by doing some research, hearing stories from other people, and talking to your ob-gyn beforehand — or keep reading for everything you need to know, straight from ob-gyns themselves.