I had the Pfizer vaccine on the 24th of April, my first dose. Had just finished my period on the 15th and started on the 11th so was close to my ovulation period. It's now the 3rd of June and there's no sign of my period at all, about a week ago I got was bad back ache constantly for days so I thought I may have been starting but nope. Am definitely not pregnant either but I don't know what to do at this point. Another thing I noticed was extreme hormonal emotions and mood swings, I literally could've killed someone it was that bad.... (I wouldn't have 🤣) I don't even know what to do at this point... any advice