SleekRank renders whatever the data row carries, including pre-calculated example dates. If you want an interactive due date widget on the page, ship a small Alpine component that takes the LMP date or transfer date and applies the formula exposed as a data attribute. SleekRank handles the static SEO surface; the widget handles ad-hoc date input.

Add cycle-length variants as separate slugs (from-lmp-28-day-cycle, from-lmp-30-day-cycle, from-lmp-irregular-cycle) and document the adjustment math per slug. The slug-based approach matches how readers search ('due date calculator irregular cycle') and keeps the adjustment math attributable to a specific scenario.

Yes. Define /due-date/natural/{slug}/ and /due-date/ivf/{slug}/ as separate page groups pointing at distinct datasets. The natural sheet covers LMP and conception methods; the IVF sheet covers fresh transfer, frozen transfer, day-3, day-5, and donor egg scenarios. Splitting cleanly handles the editorial differences.

The sheet is the single source. When ACOG or ASRM update guidance on offset days for a transfer protocol, update one column and flush the SleekRank cache. Every affected page picks up the new offset on the next request, with consistent attribution if you keep a source column in the sheet.

Add postpartum_milestones as a separate array column or split into a different page group at /postpartum/{slug}/ for clean separation. Pregnancy and postpartum content audiences differ enough that most publishers keep them in separate groups, sharing a base template style but pointing at distinct datasets.

SleekRank caches the source per cacheDuration set in seconds. Edit the sheet, clear the SleekRank cache via WP-CLI or admin, and the next request rebuilds the page with new data. For pregnancy formulas (a slow-changing clinical domain) set cacheDuration high so the sheet is not constantly refetched.

Yes. Each generated URL is a real WordPress page included in the sitemap. The base template is excluded automatically so the scaffolding does not compete with real scenario pages. Run a rewrite flush after adding new slugs so the routes resolve immediately on production.

Yes. SleekRank ships with a related entries helper that filters by category and renders up to six related pages with a deterministic shuffle. Group scenarios by method family (all IVF variants together, all LMP variants together) and the related cluster forms automatically per page.