Congrats sa pregnancy, mama! I totally understand your worry kasi it's your baby, pero honestly the good news is maraming moms din na may hypothyroidism at nag-deliver ng healthy babies, ang importante lang is consistent TSH monitoring with your OB and endocrinologist kaya please coordinate with them, especially ngayon na pregnant ka na may mas mataas na hormone requirements. One of my mum friends was on levothyroxine din during her pregnancies at regular testing lang talaga ang naging routine niya, and her kids are thriving now, your faith plus good medical support will get you through this, mama.