In-depth guide

UK maternity timing: dating scans vs period maths

NHS pathways emphasise dating scans when there is uncertainty—use calculator output as orientation only.

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Booking appointments

Follow local maternity service guidance rather than a web estimate.

FAQ

Is this professional advice?
No—educational estimates only.
Why might numbers differ from another app?
Rounding, assumptions, and unit conventions vary.
Can I rely on this for legal or medical decisions?
No—consult qualified professionals.

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