More research is required. We don't actually know what the link is, only that more woman have reported menstral issues after taking the vaccine than before.

https://www.gov.uk/government/publications/coronavirus-covid-19-vaccine-adverse-reactions/coronavirus-vaccine-summary-of-yellow-card-reporting#annex-1-vaccine-analysis-print

See the numerous reports pertaining to menstrual issues.

I am not saying these issues are statistically significant, but again, as with anything vaccine related, to categorically reject the notion that there could be side effects to the vaccine that are currently unknown is to pretend that we know the long term side effects of vaccines. We don't.

And btw, Dr. Malone has plenty of patents pertaining to mRNA technology, I don't think his disgruntled wife changes that.