Thyroid & Pregnancy

This should be a prominent separate section on your website because thyroid hormone is important for normal pregnancy and fetal development. NIDDK Reference

Can I become pregnant if I have thyroid disease?

Yes.

With appropriate treatment and monitoring, most women with thyroid disease can have a healthy pregnancy.

Should thyroid function be checked before pregnancy?

It may be appropriate in women with known thyroid disease or specific risk factors.

Can pregnancy change TSH?

Yes.

Pregnancy causes normal changes in thyroid physiology, so thyroid tests need to be interpreted using pregnancy-appropriate reference ranges. American Thyroid Association Reference

Is levothyroxine safe during pregnancy?

Yes.

Levothyroxine is the recommended thyroid hormone replacement during pregnancy when treatment is required. NIDDK Reference

Does the levothyroxine dose need to change during pregnancy?

Often, women who already take levothyroxine need a dose adjustment during pregnancy.

Thyroid function should be monitored regularly. NIDDK Reference

Can I stop thyroid medicine when I become pregnant?

No.

Do not stop prescribed thyroid medicine without discussing it with your doctor.

Can hyperthyroidism affect pregnancy?

Yes.

Uncontrolled significant hyperthyroidism can increase risks for both mother and baby. NIDDK Reference

Can Graves' disease affect the baby?

Yes.

Graves' antibodies can cross the placenta and, in some situations, affect the baby's thyroid. Appropriate monitoring is therefore important. NIDDK Reference

Can I take antithyroid medicines during pregnancy?

Some antithyroid medicines can be used during pregnancy, but the choice and dose depend on the stage of pregnancy and individual circumstances. American Thyroid Association Reference