
I dont have any personal experience yet with nursing while pregnant(hopefully soon), but let me atleast try. I think that there are two different schools of thought on cramping while nursing. One being that its ok, just your uterus preparing itself and getting ready for growing baby....the other that its not a good thing as nipple stimulation later in pregnancy can be used to induce labor. I might be wrong on this, so take it with a grain of salt.
Are you ready to wean dd? If not maybe try different positions, make sure she has a proper latch, and are you getting enough fluids? Maybe because your milk starts to dry up some she is sucking harder to pull more out? Im really not sure but thats the only thing I can think of. Hopefully it will get easier or DD weans, which ever your prefer. Another thing to try, maybe she is wanting the comfort more then the nursing. Make sure to give her some "quality" cuddle time like she gets while nursing. This might calm down the screaming. I know its hard when you have a screamer....little


Good luck mama....hopefully you will have a better time soon!