Medical guidance changes, studies get replicated (or don't), and guides go stale quietly on
most sites. Not here: every meaningful update to our content and tools is listed below, newest
first. If a guide changed because the official advice changed, this is where you can see it.
July 17, 2026
Added month-by-month pages (months 1–12) alongside the weekly pages.
Added a unique "this week, specifically" fact to each of the 52 weekly pages.
New pages: the preemie hub, For grandparents, and an honest comparison with The Wonder Weeks.
Added 3 a.m. mode: a warm dark theme with larger text, for one-handed night reading.
The forecast now remembers your baby's dates on your device (local storage, not cookies — privacy policy updated accordingly), with a "forget these dates" button.
Reworded the top statistics bar: replaced audience claims with verifiable ones.
July 10, 2026
Launched the 52 weekly pages (/week/1 to /week/52), each with the CDC checklist for its window.
July 7, 2026
All five window guides fact-checked and marked "Last verified: July 7, 2026".
July 6, 2026
Site launch: the Fussy Phase Forecast with adjusted age, five window guides, and the fact-checking policy published.
How updates happen: sources are re-checked against CDC, NHS and AAP publications, and guides
carry a "last verified" date. The method is documented in
how we check our facts.
Peanutbean provides general information for educational purposes only. It is not medical advice.
Every baby develops at their own pace. Always talk to your pediatrician about your child's health.
What's going on?
Struggling to breathe, blue or grey lips, a seizure, or unresponsive?
Call your local emergency service now. Do not keep browsing.
Won't stop crying
Start with the basic checks: feeding, nappy, temperature, clothing, and anything that could hurt. If the cry sounds unusual, your baby is hard to wake, or breathing looks different, get medical help. If you feel overwhelmed, put the baby on their back in a safe cot and step away for a few minutes.
Quick orientation only. The full guide explains the warning signs and links its sources.
38C / 100.4F or higher is a fever. If your baby is under 3 months, call a medical professional now. At any age, get urgent help if your baby is hard to wake, struggling to breathe, having a seizure, or looks blue or grey.
Quick orientation only. The full guide explains the warning signs and links its sources.
Frequent night waking is common in the first year and does not mean you have caused a problem. For every sleep, place your baby on their back on a firm, flat, separate sleep surface with no pillows, bumpers or loose bedding.
Quick orientation only. The full guide explains the warning signs and links its sources.
Spitting up after feeds is common. Get medical help promptly if vomit is green or bloody, vomiting is repeatedly forceful, your baby struggles to breathe, feeds poorly, or has noticeably fewer wet nappies.
Quick orientation only. The full guide explains the warning signs and links its sources.
Many baby rashes are mild, but a rash needs prompt medical attention if your baby also has a fever, feeds poorly, is hard to wake, or seems very unwell. Call emergency services if there is trouble breathing or swelling around the lips or tongue.
Quick orientation only. The full guide explains the warning signs and links its sources.
A red face and straining do not mean constipation if the poo is soft. Hard, dry poo is different. Contact a medical professional if your baby is very young, feeds poorly, vomits, has blood in the stool, or has a swollen tummy.
Quick orientation only. The full guide explains the warning signs and links its sources.
Sore gums, drooling and chewing are common signs. Teething does not explain a fever of 38C / 100.4F or a baby who seems very unwell, so do not assume a new tooth is the cause.
Quick orientation only. The full guide explains the warning signs and links its sources.
A yellow tint in the first week is common. Get medical help promptly if it appears in the first 24 hours, or if your baby is hard to wake, feeds poorly, has dark pee or pale poo, or is becoming more yellow.
Quick orientation only. The full guide explains the warning signs and links its sources.
Put the baby on their back in a safe cot, leave the room for a few minutes, and ask another adult to take over if one is available. If you think you may hurt yourself or the baby, call your local emergency service now.
Quick orientation only. The full guide explains the warning signs and links its sources.
Wanting to be held is common in young babies. Contact sleep is only safe while the adult stays awake. Never fall asleep holding a baby on a sofa or chair. For sleep, use a firm, flat, separate surface and place the baby on their back.
Quick orientation only. The full guide explains the warning signs and links its sources.
A repeated fussy stretch in the evening is common in young babies, but the pattern is not a diagnosis. Get medical help if there is a fever, breathing looks different, your baby is hard to wake, or feeding has changed sharply.
Quick orientation only. The full guide explains the warning signs and links its sources.
Newborns can grunt and squirm during active sleep. Get urgent help if grunting happens with every breath, the ribs pull in, lips look blue or grey, there is a fever, or your baby is hard to wake.
Quick orientation only. The full guide explains the warning signs and links its sources.
