Ive heard good and bad. And too many people talking about the pain afterwards. And @kala_elise, you can get your tubes untied and have kids. It may be permanent but you can get it reversed. Very expensive though.

very permanent

have you already talked to your doctor? if not they may not do it, based on your age... also will you be having a c-section or vaginal birth? I know from c-section experience that it doesn't hurt; I had mine done during my last c-section and I felt nothing and I had no extra pain from it