TSH in Pregnancy

[vms55]

Hi, I am 6 week 3 days pregnant and got my thyroid profile today. My FT3 and FT4 is normal but TSH is high.
FT3 - 2.89 (adult range 2.5 - 3.9 pg/ml)
FT4 - 0.82 (adult range 0.61 - 1.12 ng/dl)
TSH - 3.94 (adult range 0.34 - 5.6, first trimester 0.1 - 2.5 uIU/ml)
Please let me know if this is cause for concern and what I should do.

[Barb135]

You should talk with your doctor about starting a thyroid replacement medication.  Adequate thyroid hormones are essential the growth and development of a fetus.

Even though your FT3 and FT4 are "normal", they are way too low in their ranges to be adequate.

[Red_Star]

Even mild thyroid dysfunction is early pregnancy is increases the risk of miscarriage, stillbirth, low birth weight, and other serious complications. Please see your doctor as soon as possible for a thyroid hormone replacement prescription.