FAQs
LMP plus 280 days for a 28 day cycle. Cycle adjustments shift the date accordingly.
No, estimate only.
Results may be less precise, consider clinical guidance.
Trimester boundaries use standard week ranges.
No.
Yes, use the screenshot button.
Consult a professional, ultrasound can estimate dates.
Dates do not need units.
Different assumptions and clinical overrides.
Yes.
Frequently asked questions
Estimate a pregnancy due date and milestone dates from a last menstrual period or conception date.
Read the displayed labels and validation messages together, then verify important findings against the original source. The result is a practical aid, not proof beyond the data it can inspect.
Inputs, source data, network conditions, and the limits explained on the page can affect the result.
Read “Understanding Due-Date and Ovulation Estimates” for a practical workflow, limitations, and checks to make after using the tool.
Related tools
Read the guideUnderstanding Due-Date and Ovulation Estimates
Read guide