預產期計算器
根據末次月經第一天或受孕日期估算預產期。
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使用方法
- 1選擇設定
填寫資訊或選擇您需要的選項。
- 2檢視結果
更改任何內容時，預覽會立即更新。
- 3下載或儲存
將結果儲存到您的裝置。不會向伺服器傳送或儲存任何內容。
About this tool
Work out your estimated due date and how many weeks pregnant you are. Use the first day of your last period (adjusted for your cycle length) or the date of conception. You also see when the second and third trimesters start. Only about 5 percent of babies are born on the due date, so treat it as a guide, not medical advice.
When to use it
Estimate your due date from the first day of your last period or the date of conception.
Tips
Only about 5 percent of babies arrive on the due date. A dating scan gives a better estimate.
Privacy
Everything runs in your browser, so your data is not uploaded or stored.
獲得最佳結果的提示
開始之前請花一點時間閱讀選項，並先用一個小例子試用工具。一切都在您裝置的瀏覽器中執行；您輸入或新增的任何內容都不會被上傳，關閉標籤頁會清除所有內容。如果看起來不對，請重新整理頁面重試，或使用本頁的報告連結告訴我們出了什麼問題。如果結果仍然看起來不對，請每次只更改一個值，看看哪個輸入影響最大。如果您還會再用，請收藏此頁。
要點
- 分類: 日常工具
- 在瀏覽器中執行，無需註冊，無需上傳。
- 您輸入的資訊保留在裝置上。
- 提供多種語言。
- 內容最後稽核日期:
常見問題
How is the due date worked out?
By adding 280 days (40 weeks) to the first day of your last period.
Is this medical advice?
No. Your midwife or doctor confirms your due date, usually with a scan.
How is it calculated?
Forty weeks from the first day of the last period.
Is it exact?
No. It is an estimate. Your doctor will confirm it.