BIG QUESTION

sooooo I want to get my nipples pierced but as it is I already have super sensitive nipples. I heard that with the piercing they get sensitive so I'm kinda debating on getting them now. How long do they take to heal? Other than that does it hurt? Cause omg I don't want to cry while getting them. My belly button was cake I had no issue but I tugged on it too much so I took it out but now I want the nipples so please someone help me with my billion questions lol