Dr Naomi Wolf, noted Leftist feminist author became concerned about women’s health issues from the Covid vax, after she received numerous reports of women having unusual menstrual problems, from skipped periods to massive bleeding. Research led her to become a major social critic of the vaxxes. In the video linked below she summarises the threat that the spike proteins are posing, as these chemicals are known to reach the ovaries. It is a plausible hypothesis that such mRNA spike proteins are responsible for the adverse effects now being seen.