How we make money.

The calculators are free forever. We pay for the site three ways: a small number of clearly-labeled display ads, affiliate commissions on products we recommend, and credits for the optional paid face-aging feature.

Affiliate programs

Programs marked active are wired into the site today; programs marked pending are ones we've applied to but haven't been approved for yet. Until a program is active, you'll see "Affiliate link coming soon" on related cards instead of a purchase button.

• Amazon Associates (pending) — once approved, most product links will route through Amazon. As an Amazon Associate, we will earn from qualifying purchases.
• Babylist (pending) — registry-related products. Babylist commissions, when active, will support the registry page specifically.
• Direct brand programs (pending) — selected brands we use ourselves (e.g., Hatch, Frida Mom, Ritual). Disclosed in-context where applicable, once active.

What this changes for you

Nothing on price — affiliate commissions are paid by the retailer, not by you. The price you pay is the same as buying the product directly.

What it never changes for us

We don\'t recommend products we wouldn\'t use ourselves. We don\'t accept paid placement, sponsored reviews, or "preferred partner" deals that would put a product in front of you because of payment rather than fit. Recommendations are editorial; ad slots are clearly labeled "Sponsored."

If you ever spot something that feels off, email editor@willthey.baby. We\'ll reply.

Display ads

A small number of pages run a single Google AdSense slot. AdSense ads are personalized using AdSense\'s own cookies; manage your preferences at adssettings.google.com.

Questions? Email editor@willthey.baby.