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Due Date Calculation Ultrasound Measurement Trimester Milestones ACOG Redating IVF Tracking Gestational Age

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Best intervalo de datas APIs

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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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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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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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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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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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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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.

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