Yes. Haven't had a period since my first Pfizer shot in mid April. I'm perimenopausal and been skipping a month here and there but nothing this long so pretty sure it's the vaccine. Praying the good fortune continues!!!
There are a ton of reasons your period may change from one cycle to the next, but speak to a doctor if you're concerned, there could be something serious going on or nothing at all. Stress, diet, exercising a lot, not exercising enough, sleep, other medications or supplements, other disorders, etc...
I took the first dose of pfizer june 19th the day of my cycle. but i wonder if it's affecting this cycle because this one i'm extremely crampy and tired. this is unlike anything i've ever experienced. has anyone else had this happen?