Little over 31wks pregnant spotting bright red blood?

ALL Bleeding arrising in the 3rd trimester needs to be dealt with by a doctor.Common conditions of minor bleeding include an inflamed cervix or growths on the cervix. .Major problems of bleeding this late can be placental abruption or placenta previa or preterm labor. The backache and cramps are signs of pre-term labor. It could be nothing but it needs to be evaluated. I'd call your doctor.Good luck~