Has anyone experienced period changes after their covid vaccines, specifically the Pfizer ones? I had the mirena coil fitted August 2020 and had two menstrual cycles before my periods stopped altogether, including any period pains. 14th August I had my second vaccine and one week later had my first period in almost a year, and am now having period pains again only a couple of days after this cycle. It's possible that it's just because it's been a year that my body is trying to go back to how it was, but a huge part of me thinks it is because of the vaccine - I really didn't miss the joys of stabbing pains and hormonal acne 🙃