Levonorgestrel
"Yes, it was quite painful to insert even with two Tyleno-3 tablets and a numbing gel,  however totally worth it as birth control. But... I've gained 60 pounds in 8 months! I'm eating very clean - no sugar, no junk food, barely any carbs and I'm a heifer now!!! Going to my gynecologist tomorrow and getting it removed, I can't deal with this anymore!"