D dimer always positive but no clots found in lungs or legs. does this mean i have some clotting disorder? will it be a problem if i become pregnant?

D-dimer: This does suggest some form of clotting disorder. The clotting may be in small vessels not picked up on routine studies for elevated D-dimer levels. You should see a hematologist (specialist in blood disorders). Until the etiology of your D-Dimer is found, if on birth control pills, another form should be used as birth control pills increase the risk blood clots large and small.