6TC-30656-54488 · OpenVSafe

Timeline

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

2021-05-12
Dose 1 — Pfizer-BioNTech
2021-06-02
Registered in v-safe
2021-06-02
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-06-04
Dose 2 — Pfizer-BioNTech
2021-06-09
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-06-10
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-06-11
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-06-18
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-06-25
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-07-02
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-07-09
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-07-16
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-09-03
Survey response — 3 months, dose 2
MedDRA: Menstrual disorder, Menstruation delayed — Feeling: Good

Free text: Just wanted to document that the vaccination disrupted my menstrual cycle for 66 days. I have religiously tracked my period for over 20 years, so I am highly confident there is correlation. But it began again on day 66.

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-12-03
Survey response — 6 months, dose 2
MedDRA: Menstruation irregular — Feeling: Good

Free text: I have only had my period once since getting the vaccination. My period has been like clockwork my entire life up to this point, as I keep track of it in an app. Before cell phones, I kept track of it on a calendar. I had my second shot in June

MedDRA releases: 2024-11 · check-in free text available
2021-12-17
Dose 3 — Pfizer-BioNTech
2022-06-17
Health check-in — 6 months, dose 3
Feeling: Good

Adult check-in
2022-12-19
Health check-in — 12 months, dose 3
Feeling: Fair

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-05-12	Pfizer-BioNTech
2	2021-06-04	Pfizer-BioNTech
3	2021-12-17	Pfizer-BioNTech	No

Free text

Release 9 — 3 months, dose 2

2021-09-03

Symptoms: Just wanted to document that the vaccination disrupted my menstrual cycle for 66 days. I have religiously tracked my period for over 20 years, so I am highly confident there is correlation. But it began again on day 66.

Release 10 — 6 months, dose 2

2021-12-03

Symptoms: I have only had my period once since getting the vaccination. My period has been like clockwork my entire life up to this point, as I keep track of it in an app. Before cell phones, I kept track of it on a calendar. I had my second shot in June

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	Menstrual disorder	✓	·	✓
SD	Menstruation delayed	✓	·	✓
SD	Menstruation irregular	·	·	✓

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