BabyData pregnancy calculators

• calculate_due_date — Estimate a pregnancy due date and current stage using Naegele's rule, from the last menstrual period (LMP), conception date, or an IVF embryo-transfer date. Ret
• calculate_ovulation — Estimate the likely ovulation day, the fertile window and the next period from the first day of the last period and the average cycle length. Informational only
• pregnancy_weeks — Work out how many weeks and days pregnant someone is, the trimester and progress through the 40 weeks, from either the LMP or the due date. Informational only,
• maternity_pay — Estimate UK Statutory Maternity Pay over the 39 weeks under gov.uk rules: 90% of average weekly earnings for 6 weeks, then the lower of the statutory flat rate

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