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Free tool · Pregnancy planning

When is your baby due?

Find out your due date, exactly how far along you are, and get your personalised week-by-week plan.

The most common method — your due date is 40 weeks from this date.

28 days
21 45

If your cycle differs from 28 days, we adjust your due date. For irregular cycles, the ultrasound method is more accurate.

Please enter a valid date within the past 12 months.

Your due date is 38 weeks (266 days) from conception. Best if you tracked ovulation or have an irregular cycle.

Please enter a valid conception date within the past 10 months.

Enter exactly as written on your scan report — e.g. "8 weeks 3 days". First trimester ultrasounds are the most accurate dating method.

Please enter both a scan date and the gestational age from your report.

IVF dating is the most precise method — the exact transfer date is known. Your clinic may have already given you a due date.

Please enter a valid transfer date within the past 10 months.

Your estimated due date
Week of pregnancy
Days to go estimated
Trimester
Week 1Week 13Week 28Week 40
T1 · Wks 1–12
T2 · Wks 13–27
T3 · Wks 28–40
Key dates & milestones +
Get your week-by-week plan.

We'll send a personalised guide for every week of your first trimester — what's happening, what to take, and what can wait.

Please enter your first name, last name, and a valid email address.

Reviewed by Dr Anna Cantlay, FTC Chief Medical Officer
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Your plan is on its way.

Check your inbox — your first week's guide is heading to you now. We'll be with you every step from here to week 12.

Week — · Plan starts now
Results are an estimate Always confirm with your midwife

Use our free pregnancy due date calculator to estimate when your baby is due, how many weeks pregnant you are, and what stage of pregnancy you’re in.

Enter the first day of your last period, or your conception date if you know it, and we’ll create your personalised week-by-week pregnancy plan, with helpful guidance for your body, your baby, your wardrobe and the essentials you may want to prepare along the way.

Use coupon code WELCOME10 for £10 off your first order when you spend £60.

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