I'm sorry about your losses. I'm just mc our first pregnancy after trying 10yrs. This was ivf #2 for us. You are welcome to read my journal about why my doc thinks it happened to us. I'm not sure about celiac disease but know there are gluten free stores out there now. It could be worth a try. Have you been tested for things like nk cells? It rejects the baby thinking it doesn't belong. Also taking baby asprin if your dr recommends it, I'm going to start on a heparin like injection called loveanox next ivf cycle in case a blood clot compromised the baby. There are just so many variables that should be looked into to help rule things out. Also maybe genetic testing which I'm getting my insurance to cover since the mc and my cousins unhealthy baby with loss genetic disorders and a mc she had at 12 weeks which showed severe down syndrome and a heart defect that would of been fatal. If your interested read my journal on ivf #3.
you could also look into a 3 month cycle (at least) of acupuncture for fertility, western doctors treat the problem once it surfaces while acupuncture will treat what is causing the problem, also take alook at this website, and go to the reoccurant miscarriages page, it may contain some info for you www.natural-fertility-info. com (dont put in the spaces) good luck :)