Hypothyroidism pregnancy help

TTC #2 due 3/29

I am 10 weeks pregnant. When I was 5 weeks my levels were 3.5, meds were increased. Some say they should be under 2 but I have read 2.5 is ok too. 4 weeks later my levels are 2.5 and my dr didn't adjust anything. I am super worried that having levels at 3.5 did harm to the baby and now that they are 2.5 it could still cause harm.

My ob said under 4 is still safe and my endocrinologist is happy with the levels at 2.5.

I am also so unbelievably tired that I took an extra 50mcg hoping this would lower my levels to under 2 and give me some energy back. I felt better for a day. Need to call my dr I am freaking out, now I have to wait until monday.

Please tell me these aren't dangerous levels for my baby!