<s>[INST] 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! [/INST] Hello,It is necessary taking blood thinners, considering the presence of a blood clot. From the other hand, it is necessary holding compression socks and try to have some rest. I would also recommend checking coagulation tests in order to find the possible cause underlying the blood clot. You should discuss with your doctor on the above tests. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ilir Sharka, Cardiologist </s>