This is caused by hormonal changes. You may have some bleeding from the gums when you brush your teeth. Use a soft toothbrush and continue to brush and floss regularly. Abdominal aches are usually related to the stretching tummy and the ligaments in the abdomen. The growing uterus and baby also cause crowding in the abdominal area.
Itchy skin can result from the stretching of the skin.
Try a good moisturizer. Leg and foot cramps may be bothersome. Don't point your toes down when you stretch, keep you feet flexed to reduce cramping. Constipation can become a problem. Relieve constipation by drinking plenty of fluids, eating a diet higher in fiber and getting regular exercise.