36 Weeks Pregnant, Recently Moved And Was Working 12 Hr

36 weeks pregnant, recently moved and was working 12 hr shifts (no rest). Started with tenderness in lower baby bump, hips, thighs but left inner thigh pain became unbearable. Evaluated for DVT due to pain, slight swelling and muscle feeling hard. No DVT in suspected thigh but indeterminate SVT in lesser saph vein of LLE. never had symptoms in calf. Dr told me I did have SVT and took me off work. Feeling much better within a few days but my symptoms do not add up with diagnosis of SVT as pain was above area and I never had symptoms of SVT in calf. Could it be a false result? Why would Dr tell me I do have SVT when the result said indeterminate?