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Pregnancy Calculator
Estimate your due date, gestational age, trimester, conception date, and pregnancy progress from your LMP.
pregnancy calculatordue date calculatorpregnancy week calculatorconception date calculator
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Enter your LMP date to estimate your due date and current pregnancy timeline.
Pregnancy progress
0% of the forty-week timeline
Estimated due date
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Gestational age
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Trimester
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Conception estimate
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Days remaining
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Current week
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Milestone summary
Week-by-week highlightsHow to use
How to estimate due date and pregnancy progress from your LMP
- 1 Enter the first day of your last menstrual period to set the starting point for the calculation.
- 2 Adjust the average cycle length if your cycle is shorter or longer than the standard twenty-eight days.
- 3 Review the estimated due date, conception estimate, trimester, and gestational age based on the entered information.
- 4 Use the progress bar and days remaining count to understand roughly where you are within the forty-week pregnancy timeline.
- 5 Check the milestone summary to see key week markers such as the end of the first trimester and full-term range.
A pregnancy calculator offers a quick way to estimate due date and current gestational age using Naegele’s rule. Many people want a simple starting point after confirming a pregnancy, and an LMP-based tool helps translate dates into something easier to understand. By showing weeks, days, trimester, and conception estimate together, the calculator turns calendar math into a clearer summary.
Cycle-length adjustment is important because not everyone ovulates on the same schedule. A longer or shorter average cycle can shift the expected due date, so the tool lets you account for that before reviewing the timeline. It is a helpful planning reference, though any medical questions or personal care decisions should still be confirmed with a qualified healthcare professional.
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