Hi mama! I totally get the worry, lalo na may autoimmune condition ka, I have a friend with the same thing and she was anxious din sa first trimester when her levels started going up. Since your old OB was concerned before but your levels were okay then, and now your new OB is saying it's normal for TSH to rise in pregnancy, I think it's worth getting a second opinion or asking your new OB to explain more about what "normal" means for your specific situation, especially with your autoimmune history, better safe than sorry talaga, diba? Maybe request for regular monitoring lang para ma-track mo how it goes, kasi pregnancy and thyroid can be tricky together. Fingers crossed it's really just the pregnancy hormones doing their thing, mama!