Hello! Looking for some reassurance! My TSH level at 23 weeks is 17!!! They last tested it around 12 weeks and it was within the normal range then. They are of course increasing my levothyroxine dosage right away but I was wondering if anyone has had a similar experience? Are high TSH levels in 2nd trimester as concerning as they are in the 1st trimester in regards to baby's development? How often should I be advocating to get my levels rechecked? At 12 week appointment doctor said two months and now I am wishing I would have asked for a re-check sooner. Dr. Google is scaring the heck out of me!