A further concern is that pregnant women were excluded from all of the vaccine trials, so there has not yet been a proper study with a control group to see if there are any differences in pregnancy loss or congenital defects between vaccinated and unvaccinated women. Additionally, the trials were irreversibly terminated after just a few months when the control arms were vaccinated, ending the possibility (threat?) of any long term data emerging from the trials. Fertility is something that by definition requires a long term study to properly assess, which will obviously no longer be forthcoming in any form from the actual clinical trials
So right off the bat, the trials never established that the vaccines didn’t affect fertility, the “experts” just assumed that they didn’t. Expert opinion is not considered evidence of drug safety for good reason, namely that experts are usually wrong when it comes to predicting things, especially regarding novel drugs (for a variety of widely ranging reasons). Regrettably, experts seldom recognize the limits of their own expertise, and vis a vis covid seem unaware that any exist altogether. Were expert opinion a valid method of adjudicating safety concerns for new medical products, the FDA could be retired, as experts almost always assume new drugs won’t have any unanticipated side effects. Thus the contention that “experts say” is an empty and meaningless pile of nonsensical drivel.