工具大全 ToolBox — 免费在线工具箱

200+ 免费在线工具,纯前端本地运行,数据不上传服务器。

i关于本工具

用途说明

预产期 / 孕期计算器支持末次月经(可校正周期)、受孕/排卵日、试管移植(D3/D5/D6)与 B 超孕周反推,实时输出预产期、当前孕周、孕程进度与科普里程碑。纯前端本地计算,适合备孕与孕期家庭自查参考,不构成医疗诊断。

使用步骤

  1. 选择推算方式:末次月经、受孕日、试管移植或 B 超反推。
  2. 填写对应日期与参数(如周期天数、胚胎天数、超声孕周)。
  3. 查看预产期、孕周进度条、孕早/中/晚期阶段与里程碑表。
  4. 需要时可一键复制摘要,或跳转宝宝起名 / 生肖星座相关工具。

常见问题

为什么和医院预产期可能差几天?
医院常结合早孕 B 超修正;本工具按标准公式推算,仅供参考,请以产科医生结论为准。
月经周期不是 28 天怎么办?
在末次月经模式下填写实际周期,工具会按「排卵日≈LMP+周期−14,再+266天」校正。
数据会上传吗?
不会。计算在浏览器本地完成,可选状态仅保存在本机 localStorage。
双胎或高危妊娠能用吗?
可作为日期参考,但分娩时机需遵医嘱;工具不能替代产检管理。

上文已说明该工具是本地处理还是会调用第三方接口,请按场景选用。

What it is for

The Due Date & Pregnancy Calculator supports LMP (with cycle adjustment), conception/ovulation, IVF transfer (D3/D5/D6), and ultrasound dating. It shows EDD, gestational age, progress, and educational milestones. Fully local — not medical advice.

How to use

  1. Choose a dating mode: LMP, conception, IVF transfer, or ultrasound.
  2. Enter dates and parameters (cycle length, embryo day, or gestational age).
  3. Review EDD, week progress, trimester stage, and milestone table.
  4. Copy a summary when needed, or open related baby-name / zodiac tools.

FAQ

Why might this differ from my clinic’s due date?
Clinics often refine dating with early ultrasound. This tool uses standard formulas for reference only.
What if my cycle is not 28 days?
In LMP mode, set your cycle length. Ovulation ≈ LMP + cycle − 14, then +266 days.
Is my data uploaded?
No. Everything runs locally; optional state stays in your browser’s localStorage.
Can I use this for twins or high-risk pregnancy?
Only as a date reference. Timing of delivery must follow clinician guidance.

Processing notes above describe whether work stays in your browser or calls third-party APIs.

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工具不存在或链接有误。