Due to a prolapsed colon, this puts pressure on the uterus causing it to tip. A tipped uterus can be the cause for pain during intercourse as well as painful menstrual cycles because the uterus cannot pass menstrual discharge efficiently. This can cause challenges in trying to become pregnant because of the pressure on the fallopian tubes or ovaries, many times the egg from the ovary cannot pass into the uterus properly and this can cause sterility along with lower back pain during menses.