M.C.
I have a question for you. Why is it that you assume you are being treated with the wrong medication? Is it because it is a different medication from what you were given before? If so, there are two big differences in your situation now than before. 1st, before you had a PE( Pulmonary Embolis, blood clot in the lung) caused from a DVT( Deep Vein Thrombosis, blood clot in the deep veins of the leg). That is a life threatening condition that requires aggressive treatment. Currently you have a superficial thrombosis( blood clot in the veins near the surface of the leg). These are not the same conditions! Superficial Thrombosis is NOT generally life threatening nor does it usually lead to DVT or PE. 2nd you are pregnant. Not all medications can be used during pregnancy. Given your history I can understand why you may be concerned but I think you should talk to the doctors treating you and have them explain why they have choosen this course of treatment. Then if you are not satisfied with the answer by all means seek a second opinion.