Report #2901448

Received Jun 25, 2026

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex: Female
Age: 31 yrs
State: MA
Recovered: Recovered
Vaccinated: Dec 12, 2021
Onset: Dec 1, 2021
Days to onset: —
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
COVID19	COVID19 (COVID19 (MODERNA))	MODERNA	1	030H21B	IM / LA

Symptoms (1)

Menstruation irregular

Symptom narrative

I noticed that every time I?ve gotten a Moderna Covid shot I skipped my next period. I have never skipped a period in my life so that was very odd and I?m positive I wasn?t pregnant any of the 2-3 times I got it initially. When I got sick recently I also missed my period which hasn?t happened on its own ever before like I said. I also recently got the novavax covid shot in May 2026 and my period actually came 2 weeks early. Nothing was affected when I received a Pfizer shot for Covid though as a booster. Just wanted to share, I assume I?m totally fine!

Medical history

Psoriasis

Other medications

Spironolactone, Aviane, vitamin d supplements (2000 IU daily)

Allergies

None