I'd phone your GP and ask to be referred to an Endocrinologist for the fact that:-
1. Your dose of levo is too low (to fit into a range).
2. You've not had the Free T3 tested and if it is low you haven't sufficient going into your T3 receptor cells. We cannot function without sufficient T3.
3. You are pregnant.
Levo is inactive also called T4 and it's job is to convert to T3 (the active hormone) needed in our billions of receptor cells in order for us to function normally.
Before the blood tests were introduced we were prescribed NDT and the doses ranged from 200 to 400mcg. One doctor, now deceased, was always informing the BTA etc about how low our doses of levo are.
The fact that you are pregnant and the doctor has lowered your dose to 'fit' into a range doesn't bode well for you and baby and I am NOT medically qualified. Many women miscarry when not on an optimum and I would ask to be referred to an Endocrinologist
You must ask him for a Free T3 blood test or get your own and I'll give you a link and cursor down to read about FT3:
We have to read and learn if we've to recover our health. It's not the doctors' fault that they are so poorly trained in Endocrinology as they used to recognise all of our clinical symptoms and prescribe NDT but the BTA now directs that it is levo only. Unfortunately none of the members of the BTA appear to have a dysfunction of their gland otherwise they would be more sensitive to the patients' needs.
I see your GP has prescribed depression meds and your 'depression' might be due to low FT3 as psychiatrists prescribe liothyronine (T3) for some of their patients. Don't stop anti-d's without discussing with him.
You also have high antibodies which means you have an Autoimmune Thyroid Disease called Hashimotos and it is the commonest form. The antibodies wax and wane until your thyroid gland doesn't work and you are then hypothyroid but the treatment for Hashis or hypo is the same. Going gluten free helps reduce antibody levels.
Always get your blood test for thyroid hormones at the very earliest and it is a fasting test although you can drink water. Also leave about 24 hours between your last dose of levo and the test so you get an accurate blood test and take it afterwards.