TSH Thyroid & Fertility Checker
Check your TSH against target ranges for your stage (general, trying to conceive, early pregnancy).
TSH Result
TSH targets vary by lab and individual situation. Not a diagnosis — consult a doctor.
About thyroid and fertility
Thyroid disorders (especially underactive thyroid) can affect ovulation, pregnancy, and miscarriage risk.
When trying to conceive or in early pregnancy, a lower TSH (often under 2.5) is commonly targeted.
FertiJourney checks thyroid and hormones as part of fertility care — get a free assessment.
TSH calculator FAQ
What TSH is ideal when trying to conceive?
Many doctors target under 2.5 mIU/L in early pregnancy and when trying.
Can high TSH affect fertility?
Yes — underactive thyroid can affect ovulation and raise miscarriage risk.
Is it treated?
Often with thyroid medication — follow your doctor's guidance.