My left lower leg, just under my calf started out really tight and the tightness stayed for a week. Then it started to hurt, now it hurts so bad and my calf is tight. It hurts to stand and sit with my leg on the floor. When I walk the calf tightens making it hard to walk. I walk with a limp. It hurts the worst in the middle of the night I am 10 weeks pregnant tomorrow. I went to the doctor and they said it is a superficial blood clot. Is it supposed to hurt this bad? What can I do being pregnant. The doctor said to put heat on it and elevate it. Nothing seems to be improving after 3-4 days!