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Due Date Calculator

Enter the first day of your last menstrual period to calculate your estimated due date using Naegele's rule (280 days / 40 weeks). Also see which trimester you are in and key milestones.

🔒 Privacy: this tool processes your input locally unless the page explicitly identifies a required network request.

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Chinese Zodiac

Find your Chinese zodiac animal by birth year.

生肖属相Zodiac