I Had Clamps Put On My Tubes After Havin My

I had clamps put on my tubes after havin my 3rd child by c-section my son will be 7 this year and I've had nothin but problems with the right clamp I got a repo shot in May to stop havin periods I didn't have on for May I should have had one around the 28th like I did every month but this month I've been bleeding for almost six days it start light and I was havin pain with it now it worse and the pain is worse I've started pass in clots with white tissue lookin stuff in them today the pain is lil worse I would love to have the clamps takin off so that me and my boyfriend can have a child together but I don't know what is Goin on with me now I would find it very hard to be able to get pregnant with the clamps and the depo shot I just don't know what else could be wrong unless it's something bad