I recently gave birth to a baby (11 weeks postpartum) who was diagnosed with Congenital Hypothyroidism. While our Pediatric Endocrinologist has assured me that my own thyroid condition has nothing to do with his diagnosis, I went ahead and had a full thyroid panel done to check my own thyroid function, since I also have some history of Hashimoto´s Disease in my family.

My results came back as follows:

T4 Free: 1.08 ng/dL
TSH-3G: 1.20 uIU/mL

ANTI THYROGLOBULIN AB: 2.00 IU/ML
ANTI MICROSOMAL AB: 0.46 IU/ML

My questions are as follows:

1. I understand that my antibody results are "low", however is it normal to have some Thyroid Antibodies as my test results indicate? Or do these results indicate that I am at risk for eventually developing an autoimmune thyroid condition?

2. I have read that women who test positive for thyroid antibodies may be at a higher risk for miscarriages. Is this something that I should have monitored during my next pregnancy?

3. Is there any way that my thyroid antibodies could have crossed the placenta and affected the thyroid function of my baby, causing transient hypothyroidism? (our Pediatric Endocrinologist has told us that we will not be able to know if his condition is transient or not until much later).

Thank you.