Day 171 of 300 · Week 23
Lap bounces and splashes
Last reviewed · 3 min read · 12 sources · Plain-text version
Two free games for strong legs and a body your baby is learning to feel: bouncing on your lap, and kicking the bath water with your hand on them the whole time.

Twenty-three weeks, and the legs have opinions. Today is two games that cost nothing: a bounce on your lap and a splash in the bath, each with one rule that keeps it safe.
Heart
Stand your baby on your thighs with your hands under their arms and you'll feel it: they push, they bounce, they lock their knees and grin. The AAP describes this bouncing as a warm-up for standing, something babies do on their own once their feet find a surface (AAP). CDC suggests exactly this, holding your baby under the arms while they stand and naming what you both see (CDC). It's a song's worth of leg strength and rhythm, and it is the free, safe version of a jumper or a walker (AAP).
Head
The bath is the other place a body learns itself. Warm water, a kick that makes a splash, a slap that makes a sound: cause and effect, which your baby is working out right now by shaking, banging, and dropping (AAP). Name the parts you wash. Naming what your baby sees and feels builds language connections before they understand a word (Harvard Center on the Developing Child). Bath play itself hasn't been studied; the safety rules around it have.
Body
The rule is one hand, the whole time. Babies can drown silently in 1 or 2 inches of water, so keep a hand on your baby for every second of the bath (AAP). The AAP's 2026 drowning guidance says the same: hand on, bath seat or not (AAP, 2026). Gather the towel and soap before the water goes in, and if you must leave the room, your baby comes with you (AAP). Tomorrow's note is all about why.
Try today

Splash time
Time: 5 to 10 minutes at bath time · Splash time in the guide
Run shallow, warm water and test it with your wrist or elbow; towel, washcloth, and soap within reach first (AAP).
Keep one hand on your baby while they kick and slap the water.
Name body parts as you wash: "Toes. Tummy. Elbow."
Lift them out before they're bored or cold, and wrap them before you reach for anything.
Make it work:Do the lap bounce first, a song's worth, so the bath lands on a tired, happy body. If your baby hates the water, a few minutes is enough; there's no prize for a long bath.
Watch for
Normal
legs that lock and bounce on your lap, then go wobbly; sit them down when they do (AAP).
Call your pediatrician
if your baby doesn't push up on their arms or hold their head steady, skills most babies have by 4 months (CDC).
Normal
a bath that ends in protest; some babies simply don't like it.
Call 911
if your baby is struggling for each breath, or has pale or blue skin (AAP).
Normal
drool on everything, including the bath toys.
Call your pediatrician right away
if your baby has a fever higher than 104°F (40°C), or looks or acts very sick (AAP).
For you

A bath of your own, when someone else is on duty. Not a shower with the door open and one ear on the hallway; a bath, with the door shut, while another adult has the baby and knows it. If you had a C-section, soaking in a tub was off the table until your provider cleared it, usually about 3 weeks after birth (MedlinePlus). That was five months ago. The rule now is just that you take it.
Overwhelming tiredness is on the CDC's list of urgent maternal warning signs, the kind to tell a provider about rather than push through (CDC). A bath doesn't fix that. It does tell you which kind of tired you are.
If you're the partner: tonight's bath is yours. One hand on the baby, the whole time, and the bathroom door upstairs stays shut.
Sources
- American Academy of Pediatrics. "Movement Milestones: Babies 4 to 7 Months." HealthyChildren.org, 2021. https://www.healthychildren.org/English/ages-stages/baby/Pages/Movement-4-to-7-Months.aspx
- Centers for Disease Control and Prevention. "Milestones by 6 Months." Learn the Signs. Act Early., 2026. https://www.cdc.gov/act-early/milestones/6-months.html
- American Academy of Pediatrics. "Baby Walkers: A Dangerous Choice." HealthyChildren.org, 2022. https://www.healthychildren.org/English/safety-prevention/at-home/Pages/Baby-Walkers-A-Dangerous-Choice.aspx
- American Academy of Pediatrics. "Cognitive Development in Infants: 4 to 7 Months." HealthyChildren.org, 2023. https://www.healthychildren.org/English/ages-stages/baby/Pages/Cognitive-Development-4-to-7-Months.aspx
- Center on the Developing Child at Harvard University. "Serve and Return." Accessed 2026. https://developingchild.harvard.edu/key-concept/serve-and-return/
- American Academy of Pediatrics Council on Injury, Violence and Poison Prevention. "Infant Drowning Prevention & Water Safety: How to Protect Your Baby." HealthyChildren.org, 2026. https://www.healthychildren.org/English/safety-prevention/at-play/Pages/Infant-Water-Safety.aspx
- American Academy of Pediatrics. "AAP Releases Updated Drowning Prevention Recommendations." HealthyChildren.org, 2026. https://www.healthychildren.org/English/news/Pages/AAP-releases-updated-drowning-prevention-recommendations.aspx
- Centers for Disease Control and Prevention. "Milestones by 4 Months." Learn the Signs. Act Early., 2026. https://www.cdc.gov/act-early/milestones/4-months.html
- American Academy of Pediatrics. "Breathing Trouble" (symptom checker). HealthyChildren.org, 2026. https://www.healthychildren.org/English/tips-tools/symptom-checker/Pages/symptomviewer.aspx?symptom=Breathing+Trouble
- American Academy of Pediatrics. "Fever" (symptom checker). HealthyChildren.org, 2026. https://www.healthychildren.org/English/tips-tools/symptom-checker/Pages/symptomviewer.aspx?symptom=Fever
- MedlinePlus. "Going home after a C-section." National Library of Medicine, 2024. https://medlineplus.gov/ency/patientinstructions/000624.htm
- Centers for Disease Control and Prevention. "Urgent Maternal Warning Signs and Symptoms." HEAR HER, 2024. https://www.cdc.gov/hearher/maternal-warning-signs/index.html
This guide is general education that summarizes published research and guidance from groups like the American Academy of Pediatrics, the CDC, and the WHO. It isn’t medical advice, and every child develops on their own timeline. Your pediatrician knows your child; if something feels wrong, call them. In an emergency, call 911.
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