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ACOG Redating Ultrasound Measurement Due Date Calculation Pregnancy Trimester Milestones Fertility Window Calculator Pregnancy Weight Recommendation Gestational Age Pregnancy Week IVF Tracking Pregnancy Due Date

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Best 孕周 APIs

Gestational Age Calculator and Week Conversion API

Health & Fitness

Gestational age at any given date, returned as a 29w2d label and as total days.

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100% uptime MCP ready

Pregnancy Trimester and Term Milestones API

Health & Fitness

Trimester boundaries, 24w0d viability, and four preterm and four term classes with their dates.

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100% uptime MCP ready

Pregnancy Due Date - Gestational Age API

Health & Fitness

Pregnancy due date and gestational age API. EDD from LMP, conception, IVF transfer day, or ultrasound CRL. ACOG redating rules, trimester, and term milestones. Deterministic ISO 8601 dates.

Free 7-Day Trial

100% uptime 809ms avg MCP ready

ACOG Ultrasound Redating Rules API

Health & Fitness

Applies ACOG Committee Opinion 700 Table 1 to decide whether an ultrasound overrides LMP dating.

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100% uptime MCP ready

Conception Date from LMP Calculation API

Health & Fitness

Conception date from a last menstrual period or from a known due date, as ISO 8601 dates

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100% uptime MCP ready

Ultrasound Dating Based on Fetal Biometry API

Health & Fitness

Dating from BPD, HC, AC and FL measurements in millimetres, using Hadlock 1984 equations.

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100% uptime MCP ready

IVF Transfer Due Date Calculation API

Health & Fitness

Due date from embryo transfer date. Day-3, day-5, day-6 and egg retrieval calculated separately.

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100% uptime MCP ready

Antenatal Visit Schedule Dates API

Health & Fitness

Antenatal visit dates from the WHO 2016, NICE or ACOG published schedules, as calendar dates.

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100% uptime MCP ready

LMP Based Due Date Calculation API

Health & Fitness

Due date from last menstrual period using Naegele's rule, with 21-45 day cycle length correction.

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100% uptime MCP ready

Ovulation Date and Fertile Window Calculation API

Health & Fitness

Ovulation estimate and 6-day fertile window from cycle length. Not contraceptive guidance.

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100% uptime MCP ready

Pregnancy Calculator API

Health & Fitness

Welcome to the Pregnancy Calculator API. This API provides endpoints for calculating Fertility Window, Pregnancy Due Date, Pregnancy Week, and Pregnancy Weight Recommendation. With this API, you can easily integrate these calculations into your applications, websites, or any other projects.

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