I have the jaydees coil as its abit smaller and is made for younger women, whenever I'm due on my period I have serious overy pain not tummy cramps, an I constantly have random kidney/back pain, I've had scans just to make sure it's not kind ry infections and everything's fine so I put it down to the coil but I have had it for 7 months now an my doctor said atleast wait 6 months an if the pain doesn't stop get it taken out so I'm not sure what the problem could be! Any ideas? X