If you have spotting i would advice you to go for a sonography
to know the well being of the baby and location of the pregnancy.
Injection HCG advised would support the pregnancy but confirm it with sonography first.
TSH 6.5 indicates you have HYPOTHYROIDISM
and not hyperthyroidism
. So I advice you to consult an expert endocrinologist
as thyroid hormone levels should be in range throughout pregnancy as it is important for the baby's brain developement.
Take care and don't worry.