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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Thyroid Medication Cause False Negative Pregnancy Tests?

Last year i had gotten my thyroid taken on and over the past year havent been taking my throid medication like i should so my levels were very low. Two months ago i had gotten my implanon out (birth control) to try and get pregnant.three weeks after i had gotten a normal period. The next period was not normal and during this week is when i starts taking my thyroid medication like i should be 250 mcg a day. My period started off spotting then stopped startes again and did this from june 19,2014 to june 24,2014. Now iv been taking my medication for 3 weeks straight and started stopping 2 weeks early before my next period is suppose to start. Iv taken pregnancy test but there all coming out negitive.. Can my hypothyroid and medicaion..levels cause a pregnancy test to not be accurate?
Fri, 23 Dec 2016
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Hello, hcg hormone level is not affected by thyroid hormones so hypothyroidism do not cause false negative pregnancy tests. Thyroid hormone requirement is increased in pregnancyand it ia a very important hormone for fetal development. Therefore increase the dose under the guidance of your physician and do proper monitoring.
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Can Thyroid Medication Cause False Negative Pregnancy Tests?

Hello, hcg hormone level is not affected by thyroid hormones so hypothyroidism do not cause false negative pregnancy tests. Thyroid hormone requirement is increased in pregnancyand it ia a very important hormone for fetal development. Therefore increase the dose under the guidance of your physician and do proper monitoring.