FertilityWindow: the protocol, with dates on it · Updated September 8, 2026

What FertilityWindow actually does

The site describes four steps. The clinic loads its own protocols once (antagonist, agonist, FET variants and the rest). A coordinator picks a patient, a protocol and a start date, and the calendar is generated in about ninety seconds by the company's own count. The patient receives a private link, reads the schedule in plain language, and taps to confirm her monitoring appointments. After results come in, the coordinator adjusts a dose or a visit and the calendar is reissued.

Inside the calendar: a day by day medication grid with the exact drug, dose, route and time window, plus a trigger countdown stated to the minute rather than to the date. Changed doses are documented with timestamped version history, so the superseded version does not quietly disappear, which is the actual reason version history exists.

There is no app to install, no account for the patient to create and no notification stream. The company treats that as a feature rather than a gap. Fair enough: a patient in the middle of a cycle does not need one more thing buzzing at her.

What it is not, in the vendor's own words

This is the part that matters most on anything touching health, so it goes up front rather than in small print. The company states that FertilityWindow is not a diagnostic tool, that it makes no clinical decisions, and that it holds no opinion about a clinic's protocols.

That is worth taking literally. Nothing here diagnoses, prescribes, predicts or optimizes. The dose on the screen is the dose a physician already chose, entered by a coordinator, displayed with a date next to it. The site also says the product sits alongside the EMR rather than trying to replace it. Clinical questions belong to the clinic, not to the calendar.

Pricing, as published

Three monthly tiers are listed. Single Clinic is $119 per month for one location. Clinic Plus is $249 per month for practices running several physicians. Clinic Group is $499 per month for two to six locations, and adds role based permissions by site. All three include unlimited cycles, unlimited patients and unlimited coordinator accounts, which is a polite way of saying the invoice does not punish a busy month.

The site says there are no setup fees and no annual contracts, billing is monthly, and cancellation happens from inside the account, ending at the close of the month already paid for. Onboarding is described as one session of about three hours, and the company says most clinics run live cycles the same week.

The plumbing: records, labs and access

On handling patient information, the company states that a business associate agreement is signed with every clinic before the first patient record is entered, that data is encrypted in transit and at rest on US infrastructure, and that access is limited by role, so a front desk account cannot read a clinical note. Patient links are single recipient and expire when the cycle closes, and clinics get an access log they can review.

On the data side, the site lists HL7 feeds for estradiol, LH and progesterone results, structured PDF and CSV export back into the chart, a coordinator queue with timestamped messages per cycle, and a capacity view of monitoring blocks. It is unglamorous inventory management, which is exactly what a clinic calendar should be.