ByDueDate

Baby planning, by due date

Exactly what your baby needs, how many, and when.

Tell us your due date. We'll show you what to buy before birth, what can wait, and what to skip, with the math shown.

See my timeline

Change it any time. Free, and your date stays on your device.

Built on official guidance from AAP · CDC · CPSC · NHTSA · FDA

Your baby's timeline

Every item, on your own dates

Your dates if you're due on Feb 28, 2027. Change the date above and the whole path moves with it.

Before your baby arrives

Ready in the first days home

  1. Start a short registry

    Around 30 items, not 100

    Buy before birth

  2. Ask about a breast pump

    Often covered by US health insurance

    Buy before birth

  3. Infant car seat

    If you'll drive home from the hospital

    Buy before birth

  4. Newborn diapers

    A starter supply, about 2 boxes

    Buy before birth

Once you know your baby

Buying early often means buying twice

  1. Size 1 diapers in bulk

    Once you know which brand fits

    Buy at 6 weeks

  2. High chair

    Ahead of solids at around 6 months

    Wait until 4 months

Keep these dates

Copy a link to this plan. Bookmark it or send it to your partner. Your due date stays in the link and never reaches our server.

Example items. Dates assume your baby arrives on the due date. Sources: breast pump coverage (HealthCare.gov), solids at about 6 months (AAP). The full plan, with quantities and sources for every number, is on its way.

A simpler way to prepare

A list tells you what. A plan tells you when.

Most baby lists hand you everything at once. So families buy too much too early, then make late-night runs for the things they're actually missing.

The usual list

  • Crib
  • Bassinet
  • Changing table
  • Diaper pail
  • Wipe warmer
  • Baby bathtub
  • Bottle sterilizer
  • Bottle warmer
  • Baby swing
  • Bouncer

…and dozens more. No quantities. No timing. Everything, now.

Your ByDueDate plan

  1. Your due date
  2. Your timeline
  3. Buy on time

  • Newborn diapers

    About 2 boxes to start

    Buy before birth

  • Sleepers and onesies

    Sized to your season and laundry

    Buy before birth

  • Size 1 diapers

    In bulk, once one brand fits

    Buy at 6 weeks

  • High chair

    One, ahead of solids

    Wait until 4 months

  • Wipe warmer

    Most families never miss it

    Skip

quantities and timing, for your date

Now, later or skip

Four labels. Every item.

Each thing we mention gets exactly one, worked out from your due date.

  1. Buy before birth

    You need it in the first days home.

    For example An infant car seat, if you will drive home from the hospital.

  2. Buy at 6 weeks

    Wait until you know your baby, then buy the right one.

    For example A bulk box of diapers, once you know which brand fits.

  3. Wait until 4 months

    Not needed yet. Buying early often means buying twice.

    For example A high chair, ahead of starting solids at around 6 months. AAP on starting solids

Helpful little calculators

The math, done for you

Each one answers for your due date, season and budget, not one number for everyone. They arrive one at a time, starting with the full Due-Date Plan.

  • Due-Date Plan

    Your week-by-week list of what to do and buy, from today to your baby’s first months.

    Building now

  • Diapers and wipes

    How many of each size, based on typical use and how fast newborns grow.

    Planned

  • Onesies and sleepers

    Quantities for the season your baby arrives in and how often you do laundry.

    Planned

  • Bottles

    How many bottles your feeding plan needs, so you don’t buy a cupboard full.

    Planned

  • First-year cost

    A realistic budget built from your own choices, not a scary national average.

    Planned

  • Minimal registry

    A short registry that covers the essentials, ready to share with family.

    Planned

Trust and safety

Advice you can check

You're about to make a lot of decisions. Here's what we promise about every page. Read how we work.

  • We show the working

    Every number comes with its assumptions, so you can adjust it to your family.

  • Official sources only

    Safety facts come from the AAP, CDC, CPSC, NHTSA and FDA, with links.

  • Recalls checked monthly

    Every product we mention, every month. Recalled products come down the same day.

  • No pretend testing

    We compare published specs, standards and size charts, and we say so.

  • We tell you what to skip

    Saving you money on the things you don’t need is half the job.

  • Commissions never decide

    Some links pay us. What we recommend is decided before we check.

One date.

Everything else, in order.

Start with your due date. We'll take it from there.

Try it with your dateHow we choose what to recommend