Hi dear welcome to HCM....
I appreciate your good knowledge on
thyroid .....
But I am here giving you full knowledge regarding your case ....
You are having high
TSH level ....
If thyroid hormone t4 is high than we can think pituitary adenoma like condition .
But here no issue of it ....
Second see your t4 is 5 ...Normal range from 5 to 12 ug/ DL ...
But this is total t4 estimation ...
In
pregnancy TBG level affected which is carrier protein and can lead false report on t4 .....
So I suggest you to estimate free t4 level estimation for correct value ...
Mostly it will come low and you are having primary hypothyroid ......
If its level normal than you have subclinical hypothyroid ....
After doc consultation
levothyroxine started as we need to keep TSH level between 2 to 3......
Hope I have solved your concern...
If still advise needed
endocrinologist can be consulted ...
Happy to help you further ....
Dr.Parth