Hi and welcome to the forum! I am glad that I can help you.
You want to know the cause of the symptoms that you experience.
Celiac disease is an autoimmune disorder of the small intestine that occurs in genetically predisposed people of all ages. This medical condition may be related to miscarriages and unexplained infertility. Medical researches haven't shown any connection between celiac disease and ovarian cysts. Ovarian cysts may appear in healthy women; they may show symptoms such as abdominal pain, painful menstruation, irregular cycles, etc. Ovarian cysts may be benign or malignant, and may easily burst.
According to the data that you described, you may have experienced bursting of the ovarian cyst. See a gynecologist for further diagnosis and treatment. You may consider having a sample of the fluid in the pelvic region checked to exclude any burst of a malignant ovarian cyst.
Please keep in mind that I provide medical information only. I am not able to diagnose medical conditions online. Please contact your doctor or other qualified healthcare provider such as a gynecologist for further advice and information about diagnosis and treatment options.