Can anyone tell me about this procedure? Burning of the uterus? pregnant?

How about if your husband gets a vasectomy? It's the safest and easiest method of permanent birth control. Any procedure you'd have would be more complicated and more dangerous, with more long term side effects. You're going to have had 3 pregnancies and 3 childbirths. Time for your husband to take on some of the physical burden, you've had more than your fair share.