Transfer to baby.
One transfer date. A medically grounded timeline, coordination checklist, and optional Baby Universe celebration layer — basic result without creating an account.
Planning aid for family building — not medical, legal, or tax advice, and not a clinical opinion for your case.
The Transfer-to-Baby Planner turns one embryo transfer date into a complete journey timeline — estimated due date, beta and ultrasound windows, trimester markers, and the legal, travel, and hospital planning windows a surrogacy journey adds.
From one date to the whole story.
Most due-date tools stop at a date. The planner treats your transfer day as chapter one of a nine-month story: the beta hCG window about 9–14 days after transfer, the first ultrasound window roughly a month in, trimester markers, the 18–22 week anatomy-scan window, and hospital planning as the estimated due date approaches. On the surrogacy path it also tracks the coordination layer that decides whether the calendar holds — legal clearance, escrow funding, insurance review, travel plans, and the update cadence between intended parents and their gestational carrier.
Every result includes a methodology note showing the exact formula used — retrieval date plus 266 days, or transfer date plus 266 minus the embryo’s age — so you can sanity-check it against what your clinic tells you.
Your Journey Passport stays on your device.
Saving a timeline creates a Journey Passport in your browser’s local storage — not on our servers, and without an account. It remembers your dates as you move between the Family-Building Lab tools on this device, so the cost calculator, Baby Universe, and the beta tracker can pick up where the planner left off. You can export the passport as a file you control, and clearing it is as simple as clearing it — the data was only ever yours.
What the .ics export includes.
The calendar export writes every dated milestone as an all-day event that opens in Apple, Google, or Outlook calendars: embryo transfer day, the beta hCG window, the first ultrasound window, the end of each trimester, the anatomy-scan window, the hospital planning window, the parent travel-planning window, the estimated due date, and any contract milestones you add. Windows export as multi-day events, so a “beta window” blocks the real range instead of a fake single day — useful when two households and an agency all need the same dates.
Only need a quick answer?
The planner is the deep version. If you just need the date math, the calculator pages answer one question each and hand the result back to the same engine.