thyroid issues while pregnant

Giselle
I've been on thyroid medication after my first pregnancy. I lost my second at 8 weeks. 
Now pregnant 5 weeks and my bloodwork came back that my TSH is low and my thyroid is high..... the total opposite of what I usually have...
Happen to anyone? Stories? Advice? 
I have an appt on Wednesday with an endo to see what that they say meantime I'm freaking out this is affecting the baby....