X3L-15170-14746 · OpenVSafe

Timeline

Registration Vaccinations Survey responses Call reports Cases without a report Call attempts Call successful Pregnancy survey

2021-03-11
Registered in v-safe
2021-03-11
Dose 1 — Pfizer-BioNTech
2021-03-11
Survey response — day 0, dose 1
MedDRA: Menstruation irregular, Pregnancy — Feeling: Fair · Site: Pain · Diarrhea, Abdominal pain

Free text: Dont know if this is related to the vaccine but I got my period for the first time today since getting pregnant. Last period was Feb 2019.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-12
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-03-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-03-14
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-15
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-11	Pfizer-BioNTech

Free text

Release 5 — day 0, dose 1

2021-03-11

Systemic reaction (other): Dont know if this is related to the vaccine but I got my period for the first time today since getting pregnant. Last period was Feb 2019.

Each entry is dated by the survey it was written in (the CDC re-sent the releases with survey dates in 2025); click a date to see that survey response. The CDC cut some text off at about 250 characters: symptoms in every release, and the other two fields in releases 9-12. Those entries are marked "cut off by CDC".

MedDRA terms by release

Field	Preferred term	2021-09	2023-04	2024-11
SRO	Menstruation irregular	✓	✓	✓
SRO	Pregnancy	✓	✓	✓

✓ active code · ○ coded but marked inactive · blank = not in that release