Official MCP RegistryListed
BabyData pregnancy calculators
UK due date, ovulation, pregnancy weeks and maternity pay calculators. Not medical advice.
First seen 21 Oct 2026. Evidence as of 21 Oct 2026.
4
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| 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. Returns the estimated due date, weeks pregnant now, trimester and weeks remaining. Informational only, not medical advice. | Not declared |
| 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. | Not declared |
| 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 or 90%. Uses the 2026-27 gov.uk flat rate of £194.32 a week, which changes each April. Estimate only, not advice. | Not declared |
| 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, not medical advice. | Not declared |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | uk.co.babydata/pregnancy-calculators | 21 Oct 2026 | 21 Oct 2026 | 1 |