Go through this with an open heart, her weakness is not yours and yours is not hers. This time if nothing else is a time of learning. Get justice, for some the vaccine is absolutely a death sentence, for others it is not.
The purpose of the vax at this stage is to divide, if it were to kill absolutely and instantly it would fail.
Decide from a clear place of Knowing regarding kids. First and foremost what you want out of life in terms of priority, from there decisions get easier. To put in a more simplistic way, if you decide that you want kids and you decide that you also want to be with her without a conflict (no doubt that both are right), the higher the likelihood she will be fertile.
They are bluffing, admittedly I am not the one with skin in the game. However, check out America's Front Line Doctors https://americasfrontlinedoctors.org/do-not-quit-your-job/
Plot twist, might be a based fag.