# BabyData pregnancy calculators Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## BabyData pregnancy calculators

Calculate UK due dates, ovulation windows, pregnancy weeks and maternity pay estimates.

- Record: https://musedirectory.ai/connector/babydata-pregnancy-calculators
- Category: Health
- Developer: BabyData (https://babydata.co.uk/api/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 108ms, checked 2026-10-29T10:15:53Z
- Endpoint: https://babydata.co.uk/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T15:26:27Z)
- Source: Found in the official MCP Registry (uk.co.babydata/pregnancy-calculators) https://registry.modelcontextprotocol.io/v0/servers?search=uk.co.babydata%2Fpregnancy-calculators

Pregnancy planning and tracking tools for UK users. Calculates due dates from last menstrual period or IVF transfer, estimates ovulation and fertile windows, tracks pregnancy weeks and trimester, and estimates UK Statutory Maternity Pay. Informational only, not medical advice.

Example request: "Calculate my due date and how many weeks pregnant I am based on my last menstrual period."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use BabyData pregnancy calculators to help me. It is a free service with an MCP server at https://babydata.co.uk/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- 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.
- 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, not medical advice.
- 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.

Screening checks:
- MCP handshake: pass (Answered in 293ms)
- Domain against threat feeds (Cloudflare security DNS): pass (babydata.co.uk not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (4 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 127 days ago)
- AI review of purpose and tool behavior: pass (No concerns)