💗
 AI Pregnancy Companion

A beautiful
pregnancy journey,
week by week

Follow your baby's growth with personalized weekly insights, gentle AI support whenever you need it, daily guidance, and beautiful memories you'll cherish forever.

🤍 Week-by-Week Baby Growth ✨ AI Pregnancy Companion 📚 170+ Expert Guides 📖 Journal & Memories
Download on the App Store Get it on Google Play
Private & Secure Designed for Moms iPhone & Android
🌱
Weekly Baby Growth
🎙️
Ello AI Companion
📚
170+ Expert Guides
🥕
Milestone Cards
📓
Pregnancy Journal

Today's little thought ·

Try it

How big is your little one?

Slide through the weeks and watch your baby grow — a tiny taste of what's inside the app.

🥕
Week 21
About the size of a carrot
📏 Length: 26.7 cm ⚖️ Weight: 360 g

You may feel gentle flutters and kicks this week.

WK 4 WK 40

Read the full Week 21 guide

💡 In the app: full weekly insights, mom-focused guidance & checklists for every week

Lengths & weights are averages (crown-to-rump until week 19, head-to-toe after) — every baby grows at their own pace 💗

Feel it

A heart twice as eager as yours

Press and hold — this is how fast your baby's heart beats.

Press & hold the heart

Week by Week

Watch your little one
grow every week

Science-backed insights on your baby's development, delivered week by week with warmth and wonder — from first heartbeat to first breath.

✓
Beautiful baby visuals at every stage of growth
✓
What baby is sensing, doing, and becoming — in loving words
✓
Mom This Week — how your body is changing and what to expect
✓
Weekly checklist to keep you present in every moment
Explore Weekly Growth
Home screen — Week 21
🎵
This week
They can hear you

AI Voice Companion

Meet Ello — from morning
sickness to midnight kicks

Ello isn't a check-in you schedule. She's part of the conversation — whenever the day throws something at you, at 8am or 2am.

🌅
Wakes up with your weekly update — no need to go looking for it
🎙️
Talk it out loud when typing feels like too much
📓
Nudges you toward the journal before the moment fades
🌙
Still there at midnight, for the worries that only show up then
☀️
Morning
💬
Afternoon
📓
Evening
🌙
Night
Chat with Ello
🤍
Ello
● Active now
8:02 AM
Morning! Week 24 today 🌱 — baby's about the size of a corn cob. 📅 See what's new
1:47 PM
Feeling really nauseous again 😩
That's okay — totally common, nothing to worry about. Talk it through?
Listening…
8:15 PM
How was today? Left a blank page open in your journal, just in case. ✍️ Week 24 entry
11:30 PM
can't sleep, brain won't stop
🌙
Always available
Midnight check-ins

Plan & Prepare

Every checklist you need,
ready when you are

From your hospital bag to your birth plan, Little Nest keeps every practical detail organized — so you can focus on the moments that matter.

✓
Hospital bag checklist, tailored for you and baby
✓
Birth plan builder, exportable as a PDF to bring with you
✓
Baby shopping checklist and weight tracker
✓
Appointment and medication reminders, right on time
See All Your Tools
Hospital bag checklist
🧳
Hospital Bag
2 of 21 packed
✓Hospital bag ready
✓Birth plan printed
✓Reminders set

170+ Expert Guides

Everything you're wondering,
one tap away

From nutrition to labour to postpartum — explore 170+ expert-written guides across 13 topics, organized and ready whenever a question comes up.

✓
Nutrition, exercise, and lifestyle guidance for every stage
✓
Labour, birth, and postpartum — prepared, not overwhelmed
✓
Instant search across every guide, any time
✓
Twins & high-risk pregnancy? There's a dedicated library for that too
Browse the Library
🥑 Nutrition 💗 Labour 🌙 Mind 🌸 Postpartum
Explore topic library — 174 guides
📚
Explore
174 guides · 13 topics

Your Journey

Every milestone,
beautifully remembered

A living timeline that celebrates every step — where you've been, where you are, and the beautiful milestones still to come.

📅
Visual timeline: Heartbeat, First Scan, Baby Kicks and more
🌟
Weekly stories — warm narratives for every stage
📊
Trimester tracker with a days-to-go countdown
👀
"Coming Soon" previews to build excitement for what's ahead
Explore Your Timeline
Pregnancy journey timeline
⭐
Latest milestone
Halfway There!

Memories

Write letters
to your little one

Capture every feeling, every flutter, every thought — letters your little one will treasure one day. Private, beautiful, and tied to every week of your journey.

📝
Write at any week — entries auto-tagged to your timeline
💛
Log your mood alongside your thoughts — in just a tap
⭐
Star milestone moments so they're never lost
🔒
Completely private — stored securely, only yours to see
Start Your Journal
Pregnancy journal
💕
Your memory · Week 21
"Cannot wait to meet you"

Share the Journey

Turn every week into
a keepsake

Beautifully designed milestone cards for every week of your pregnancy — pick a style, and share the moment with the people who matter.

✓
Five elegant styles, from dreamy night skies to soft watercolor
✓
Save straight to your photos or share in a tap
✓
Personalized to your exact week and due date
✓
A beautiful way to tell your story, one week at a time
Create Your Card
Milestone Card — Week 21, Dreamy Night style
🎨
5 styles
Dreamy Night
0
Weeks of unique content
24/7
Ello, whenever you need her
0%
Private — your data stays yours
∞
Memories to hold forever

Everything in one app

Take a peek inside

Swipe through every corner of Little Nest.

Nine months of firsts.
One place to hold every single one.

Little Nest · From first heartbeat to first breath

Questions

Frequently asked questions

Is my data private and secure?

Absolutely. Your journal entries, health data, and conversations with Ello are private by design. We never sell your data and we never show you ads. What you share stays yours.

What is Ello, the AI companion?

Ello is a gentle, pregnancy-aware AI voice companion. You can talk to Ello at any hour — about your symptoms, your worries, your excitement. Ello knows your week, your history, and responds with warmth and care.

What's in the Explore library?

170+ expert-written guides across 13 topics — nutrition, exercise, labour, postpartum, medical tests, and more, including a dedicated library for twins and high-risk pregnancies. Search any time, or browse by topic.

Which weeks does Little Nest cover?

Little Nest covers your entire pregnancy from Week 4 through Week 40, with unique weekly content for each stage. We're with you from the very first positive test to the day you meet your little one.

Is it available on both iPhone and Android?

Yes — Little Nest is available on both the App Store (iPhone) and Google Play (Android). Download free and start your journey today.

🌸  Free to start · Premium for the full journey

Don't miss a single week
of your baby's story

Every week brings something new and beautiful. Little Nest is free to download and with you from Week 4 to Week 40.

Download on the App Store Get it on Google Play
🔒 Private & Secure 🚫 No Ads 🤍 Designed for Moms