Hi Angie. I don’t have a similar experience, but I am a midwife and we see a lot of women with diabetes having babies. It is very normal, and more frequent than we think, that women have some miscarriages before carrying a pregnancy to term. However, if you suffer with another miscarriage you should contact an obstetrician (some specialise in multiple miscarriages) to try preventing it in the future. This would be the same if you didn’t have T1D.
I hope all goes well for you in the future!