birth control
"I felt the need to share my experience because it was very unlike the majority of what has been shared  here. A lot of these stories had me scared to death.
So, my pain tolerance is VERY low and I thought this was going to be the worst pain in my life. Long story short, it really wasn't. Of course there was a sharp pain, but after that wave, there was only about a minute left and then it was over. I also went and got it put in  on my period to help reduce the pain. I would rate it an honest 9/10 pain for about 30 seconds. The cramping afterwards was pretty strong like a 6 or 7/10, but pain meds should help with that. The cramping was pretty mild the next day. There was additional blood with my period which has lasted a couple extra days. I have no regrets."