Educational use only
whatislmp.com explains how a pregnancy is dated from the first day of the last menstrual period (LMP) and offers calculators that give estimates. It is not medical advice, and using it does not create a relationship with a healthcare professional. Read the medical disclaimer before relying on anything on the site.
Estimates, provided as is
Calculator results come from fixed calendar conventions applied to the date you enter. They may not match your own pregnancy or the dates your care team gives you.
The content and calculators are provided as is, without any guarantee that they are complete, error-free or always available. If you find an error, please tell us through the contact form.
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Changes to these terms
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