HcG levels

Taylor • Baby K #1 due October 2015!!
Had a blood confirmation pregnancy test today.  I am only at 3 wks 6 days.y levels today were at 81. They are doing another test on Sunday just toke sure that they are rising. They did tell me that they are concerned with how low my HcG levels were. Has anyone else experienced levels in that range for gestation or should I be as concerned as they made it sound?