A
TSH level of 6.4 is high and indicates hypothyroidism. With this level, natural conception is possible, but the chances are reduced, and there is a higher risk of miscarriage if
thyroid is not controlled.
What is advised:
Start or adjust thyroid medication (levothyroxine) after consulting a doctor
Aim for TSH < 2.5 before planning pregnancy
Once TSH is controlled, chances of healthy natural conception improve significantly
Next steps:
Consult a physician/gynecologist or endocrinologist
Repeat TSH after 6–8 weeks of treatment
Start folic acid supplementation
Do not try to conceive until thyroid levels are well controlled.