孕期计算器
使用免费在线工具计算怀孕日期
Pregnancy Due Date Calculator
Estimate your due date and pregnancy milestones based on your last menstrual period.
How It Works
- • Due date is estimated as LMP + 280 days (40 weeks), following Naegele's rule.
- • Conception is assumed to occur around LMP + 14 days.
- • Trimesters: 1st (weeks 1–13), 2nd (weeks 14–27), 3rd (weeks 28–40).
- • Only an estimate — your healthcare provider can give a more accurate date via ultrasound.
Privacy & Security
All calculations run locally in your browser. Your data is never stored or transmitted.
使用这款免费的预产期计算器快速获得准确的结果。一切都在您的浏览器本地运行，以实现最大程度的隐私保护。
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Use tool →Tool Information
分类
Heart 健康和健康
类型
⚡ 在浏览器中处理
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