No period in two months?

Alexandra

Before you ask, I’ve taken 4 pregnancy tests (two last month, one last night and one this morning) and they’ve all been positively negative like not even questioning “is that another line”. Last month I had my period (I think) for like 2 days then it was done, which might have been since mine last between 3-5 days. I even stopped taking my birth control to see if that was the reason. I have been a bit stressed but not enough for it to affect a period. Just wondering if this has happened to anyone else🤔