Hyperthyroid

Ashley
Does anyone have a hyperthyroid issue?  I went to my first prenatal appointment yesterday, and my blood work shows my thyroid level is just above normal.  My doctor is putting me on a very low dose of medication. 
This is my first pregnancy, so I'm unsure of how this could affect me or my baby. I'm going back to the doctor in two weeks for the first ultrasound. 
Any advice is greatly appreciated!