You do not belong to you. You belong to the universe. The significance of you will remain forever obscure to you, but you may assume you are fulfilling your significance if you apply yourself to converting all you experience to highest advantage to others. Make the world work, for 100% of humanity, in the shortest possible time, through spontaneous cooperation, without ecological offense or the disadvantage of anyone.
Maybe you'll marry, maybe you won't, maybe you'll have children, maybe you won't, maybe you'll divorce at 40, maybe you'll dance the funky chicken on your 75th wedding anniversary... what ever you do, don't congratulate yourself too much or berate yourself either "" your choices are half chance, so are everybody else's.
Certainly miscarriage is not invariably related to low thyroid function. There are many other possible causes. Yet soon after thyroid therapy first became available, it was found that patients with a history of miscarriages often had a history compatible with thyroid deficiency and that full-term pregnancies might follow treatment with thyroid.
I have learned to prize holy ignorance more highly than religious certainty and to seek companions who have arrived at the same place. We are a motley crew, distinguished not only by our inability to explain ourselves to those who are more certain of their beliefs than we are but in many cases by our distance from the centers of our faith communities as well.