Pregnancy Milestone Calendar
View your pregnancy milestones week by week. Important developments, screening dates, and what to expect each trimester.
This tool is for informational purposes only and should not replace professional medical advice. Always consult your healthcare provider for medical decisions.
What the Calendar Shows
The milestone calendar plots the standard NHS antenatal pathway against your specific dates. Enter your last menstrual period or your due date and it works out the calendar dates of your dating scan (8-14 weeks), nuchal translucency screening (11-14 weeks), anatomy scan (around 20 weeks), glucose tolerance test (24-28 weeks if needed), and the final stretch of weekly checks from week 36 onwards.
Alongside appointment dates, you also get a week-by-week summary of what is developing in the baby and what is changing in your body. Week 8: heartbeat visible on ultrasound. Week 12: all major organs formed, around 6cm long. Week 20: full anatomy scan, baby around 25cm. Week 24: viability point, lungs developing. Week 28: third trimester begins. Week 36: full term approaching, head usually engaged.
How NHS Antenatal Care Lines Up
First-time mothers in England typically have around 10 NHS antenatal appointments. The booking appointment with your midwife happens around weeks 8-10, where you give your medical history, get a pack of information, and have blood tests. The dating scan is usually combined with the 11-14 week appointment for the combined screening test. The anatomy scan at 20 weeks is the next big one. From there, appointments are roughly every 4 weeks until 28 weeks, then every 2-3 weeks, then weekly from week 36.
Second or subsequent pregnancies usually have fewer appointments (around 7) because the medical team already has your history. Higher-risk pregnancies (twins, pre-existing conditions, age over 40, previous complications) include extra growth scans and consultant appointments. The calendar in this tool shows the standard pathway; your actual schedule may differ slightly depending on local trust practice and your individual circumstances.
When to Print or Save the Calendar
The premium PDF gives you the full month-by-month calendar to print, with appointment dates, weekly highlights, and space to write in actual scan times and midwife appointments as they get booked. Many first-time parents stick it on the fridge or keep it in the back of their NHS notes. It also makes a useful reference if you are planning maternity leave, work travel, or holidays around key milestones such as the anatomy scan and the third trimester.
If you are still working out your due date, run the [pregnancy due date calculator](/pregnancy-due-date-calculator) first. The milestone calendar uses that due date as its anchor for everything else. The [pregnancy week calculator](/pregnancy-week-calculator) tracks your week-by-week progress in more detail.
Frequently Asked Questions
Are the milestone dates exact?
The dates are calculated from your LMP or due date assuming standard NHS scheduling, but the actual scan and appointment dates depend on your local NHS trust's booking system. Your dating scan might be at 11 weeks 3 days rather than exactly 12 weeks, depending on availability. Use the calendar as a guide and update it with the actual times you are given at your booking appointment.
What if I am having a private scan as well as NHS?
Private gender scans, growth scans, or 4D scans typically slot in between NHS scans. Common timings are 16 weeks for early gender scanning, 28-32 weeks for 4D bonding scans, and 32-34 weeks for growth and presentation checks. The calendar does not auto-include these, but the gaps between NHS scans give you a good sense of when extra checks would fit.
What about screening I want to opt out of?
All screening tests in NHS antenatal care are optional. You can decline the combined screening, anatomy scan, or any other test at any point. If you decline a test, your midwife will note this in your records and continue with the rest of your care unchanged. The calendar lists what is offered; what you accept is entirely your choice.
Can the calendar replace my actual NHS notes?
No. Your green or digital NHS notes contain your full medical history, blood results, and detailed appointment notes. The calendar is an at-a-glance reference for what milestones are coming up. Always bring your NHS notes to appointments and discuss any concerns directly with your midwife.
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