2LC-13497-47643 · OpenVSafe

Timeline

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

2021-03-24
Dose 1 — Pfizer-BioNTech
2021-04-14
Dose 2 — Pfizer-BioNTech
2021-04-16
Registered in v-safe
2021-04-16
Survey response — days 1–6 daily, dose 2
MedDRA: Heavy menstrual bleeding — Feeling: Poor · Site: Pain, Swelling · Fever · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness, Abdominal pain · Be unable to do your normal daily activities

Free text: Extremely heavy period bleeding, heaviest ever

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-17
Survey response — days 1–6 daily, dose 2
MedDRA: Menstrual disorder — Feeling: Fair · Site: Pain, Swelling · Joint pains, Fatigue or tiredness, Abdominal pain

Free text: Bizarre period - today extremely light, after two of the heaviest nights I have ever had

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-19
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain, Swelling · Headache, Abdominal pain

Adult check-in
2021-04-20
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · Headache

Adult check-in
2021-04-21
Health check-in — day 7, dose 2
Feeling: Good · Headache

Adult check-in
2021-04-28
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-05
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-14
Survey response — day 28, dose 2
MedDRA: Menstrual disorder — Feeling: Good

Free text: Menstrual cycle uniquely weird:- First shot: Period five days late- Second shot: Started day of second vaccine. Very light, a night of the heaviest bleeding ever experienced, then three extremely light days.- Next cycle five days late and light

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-21
Survey response — day 35, dose 2
MedDRA: Polymenorrhoea — Feeling: Good

Free text: Menstruation markedly early, coming on day 19 instead of day 25.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-28
Survey response — day 42, dose 2
MedDRA: Abnormal menstrual clots, Menstruation irregular — Feeling: Fair

Free text: My menstrual cycle is a lot to manage post-vaccine. I've started my next cycle still following a distinct pattern unique to post-vaccine of starting with clear discharge, heavy clotting overnight, back to clear, more clotting, and irregular.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-16
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-13
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2022-04-14
Health check-in — 12 months, dose 2
Feeling: Fair

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-24	Pfizer-BioNTech
2	2021-04-14	Pfizer-BioNTech

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-16

Systemic reaction (other): Extremely heavy period bleeding, heaviest ever

2021-04-17

Systemic reaction (other): Bizarre period - today extremely light, after two of the heaviest nights I have ever had

Release 8 — day 28, dose 2

2021-05-14

Symptoms: Menstrual cycle uniquely weird:- First shot: Period five days late- Second shot: Started day of second vaccine. Very light, a night of the heaviest bleeding ever experienced, then three extremely light days.- Next cycle five days late and light

Release 8 — day 35, dose 2

2021-05-21

Symptoms: Menstruation markedly early, coming on day 19 instead of day 25.

Release 8 — day 42, dose 2

2021-05-28

Symptoms: My menstrual cycle is a lot to manage post-vaccine. I've started my next cycle still following a distinct pattern unique to post-vaccine of starting with clear discharge, heavy clotting overnight, back to clear, more clotting, and irregular.

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
SD	Abnormal menstrual clots	✓	✓	✓
SD	Menstrual disorder	✓	✓	✓
SD	Menstruation irregular	✓	✓	✓
SD	Polymenorrhoea	✓	✓	✓
SRO	Heavy menstrual bleeding	✓	✓	✓
SRO	Menstrual disorder	✓	✓	✓

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