Pre-eclampsia is a condition that typically occurs after 20 weeks of pregnancy. It is a combination of raised blood pressure (hypertension) and protein in your urine (proteinuria). The exact cause of pre-eclampsia is not understood.
The bones that make up the pelvis (the pelvic girdle) can cause pain during pregnancy. These pains arise from the sacro-iliac and symphysis pubis joints. Some women experience pain in their lower back, buttocks, thighs, hips, groin or pubic bones at some time during their pregnancy.