Pregnancy Appointment Timeline
Your antenatal visits, scans and tests with dates. Free, private and instant.
How to use the Appointment Timeline
- Choose work out from my: Last period date or Due date.
- Choose visit schedule: WHO model: 8 visits (weeks 12, 20, 26, 30, 34, 36, 38, 40) or Traditional: monthly, then every 2 weeks, then weekly.
- Answer any extra questions that appear for your choices.
- Press Calculate to get an instant result with a colour scale, chart and plain-English explanation.
About the Appointment Timeline
Plan your antenatal care with a dated timeline of visits, scans, blood tests and vaccines based on your due date. Choose the WHO eight-contact model or a traditional monthly, then fortnightly, then weekly schedule.
Also known as: antenatal appointment schedule, prenatal visit schedule, pregnancy scan dates, prenatal checkup timeline.
Worked example
Dates in this example are worked out as if today were 5 Nov 2026.
- Work out from my: Last period date
- First day of your last period: 18 Jul 2026
- Visit schedule: WHO model: 8 visits (weeks 12, 20, 26, 30, 34, 36, 38, 40)
Days until your next appointment: 16 days (Anomaly (20-week) scan). Next up: Anomaly (20-week) scan, recommended between weeks 18 and 22 (21 Nov - 19 Dec 2026). Detailed check of baby’s organs and growth.
- Anomaly (20-week) scan: 21 Nov - 19 Dec 2026
- Antenatal visit (week 20): 5 Dec 2026
- Glucose test for gestational diabetes: 2 Jan - 30 Jan 2027
- Antenatal visit (week 26): 16 Jan 2027
Formula and cut-offs
WHO 2016 model: contacts at 12, 20, 26, 30, 34, 36, 38 and 40 weeks. Common scans: dating 11-14 weeks, anomaly 18-22 weeks. Glucose test 24-28 weeks. Dates = last period + 7 x week.
Frequently asked questions
How many antenatal visits do I need?
The WHO recommends at least 8 contacts. Traditional schedules have 10 to 14 visits depending on the pregnancy.
When is the anomaly scan?
Between 18 and 22 weeks.
When is the glucose test done?
Usually between 24 and 28 weeks, earlier if you have risk factors.
Sources and references
- ACOG Committee Opinion 700 - Methods for estimating the due date
- Institute of Medicine (2009) - Weight Gain During Pregnancy: Reexamining the Guidelines
- NHS - Pregnancy guide
Written and checked by the MediHub editorial team against the sources above. Read how we build and review our calculators.
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Last updated . This calculator is for education only and is not medical advice. See the medical disclaimer.