I can imagine that the spike proteins that get in the ovaries can cause the ovaries to grow cysts. Cysts are a bit cause of menstrual pain.
Endometriosis is thought by many researchers to be an auto-immune disease. Maybe the spike proteins increase incidence of this disease.
Back in her 20s, Mrs. AZL had endometriosis. This was when I was learning about and resolving my own immune system issues at the inimitable Environmental Health Center - Dallas".
At the time she was working in a small software company that also had a machine shop, and the chemical odors would waft over from the machine shop. I recommended she find another job. She did, and the endometriosis went away. We have been very careful about our home environment ever since, excluding all petroleum products and anything with added scent.
Since both my daughter and my niece have been vaxxed, I am very concerned about their future fertility. The evidence that the spike proteins concentrate 20x in the ovaries is very scary. You'd think it was planned that way.