breastfeeding for the second day is stressful and painful even though the nurses say he is latched…

breastfeeding for the second day is stressful and painful even though the nurses say he is latched on right and between the contractions it causes to shrink your uterus makes me just want to cry and give up I think he's even cluster feeding now my back/tail bone area hurts no matter how I sit,stay or lay down starting to get sad....