Thyroid and TTC

So, I was just tested for thyroid problems due to a number of reasons. One of them being that my thyroid when felt is "on the largest side of normal, almost abnormal." I'm highly suspecting it's hypothyroidism, due to a number of close family members who have it and other symptoms I'm experiencing. Any who, my SO and I have been TTC for a while now (years). I have only gotten pregnant a few times, and each has ended in a chemical. So, if you made it this far, how many people have had thyroid problems, and once you got your numbers under control, ended up with a successful pregnancy?