Thyroid Hormone (TH) (Triiodothyronine and Thyroxine) hormone produced in the thyroid; increases metabolic rate, raises oxygen consumption, increases heat production, secretes growth hormone, promotes alertness, and grows skin, hair, bones, nails, and teeth. Calcitonin.
If you take a pregnancy test before implantation occurs, the test will tell you that youâre not pregnant (since the production of the hCG hormone has not started, this hormone will not be in your system, and the test will not detect it).
In most cases, hCG levels will have a 25mIU/ml level (enough to be detected in the blood) 4 â 5 days after implantation. This is before your expected period. But in the urine, it will take 6 â 7 days before hCG levels reach 25mIU/ml. If you believe implantation has occurred, itâs best to wait a few additional days before taking a pregnancy test.