I am deciding between Mirena and nexplanon for long term birth control. My concern with mirena is that my current partner is, ahem, on the larger side, and I'm worried that the strings will hurt him. Previously, I was using nuvaring, and it was extremely painful to him if I left it in during intercourse. My concerns with nexplanon are that in many of the reviews I read women experienced a lot of bleeding and oily skin. Has anyone had experience with both? Or, in particular, what have been the experiences of women with well endowed partners and the Mirena strings?