Levonorgestrel
"I got the mirena after giving birth about 7 weeks post partum. I bleed terribly almost every day.  Terrible back pains and no energy. Sex went out the window. My doc said to give it three months to regulate but this sucks. I'm bloated all the time and can't loose any weight. So far I'm thinking its not worth it. Obviously, its doing its job but this is not fun and its ruining my sex life !!  Also been getting headaches that won't go away."