Welcome to HCM
After going through your history. it seems that you have been treated for thrombosis
in a special physiologic state pregnancy
, but it is advisable to continue pregnancy as now there is almost negligible risk .
But your working hours are too long discuss with your Gynecologist,as you are having back pain
if you have sitting job your posture may cause it it is not related to clot.
Also hormone changes and posture of pregnancy may cause it take adequate rest take your calcium and vitamin supplementation.
Regular walking and ante natal exercises help to keep fresh and avoid complications.
You should avoid long flights and prolonged working.