How accurate is this calculator?

Based on standard 280-day pregnancy. Actual delivery may vary by ±2 weeks.

Last Menstrual Period - the first day of your last period before getting pregnant.

When are the trimesters?

1st: Week 1-12, 2nd: Week 13-27, 3rd: Week 28-40.

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Calculate your due date, current week, and pregnancy timeline from your last period date.

📅 Last Menstrual Period (LMP)

Select the first day of your last period

✨ Results update automatically

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Calculate your due date and track your pregnancy journey

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Calculate next period, ovulation, and fertile window

Calculate your exact age in years, months, days, and more

Calculate daily calorie needs based on your goals and activity

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Calculate estimated delivery date

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Know your pregnancy week

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Track pregnancy stages

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Important milestones

Enter the first day of your last period and calculate your due date.

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