Your baby is conceived
August 20, 2025
Baby's Size This Week
Week 30
Cabbage
Your baby is about the size of a cabbage this week
15.71 inches
39.9 cm
Length
2.91 pounds
1319 grams
Weight
Baby Status
Heart Rate
110-180 bpm
Estimated Kicks
~3,600so far
Hiccup Episodes
~5per day
Sleep Time
90–95%of the time
Listen to Your Baby's Heartbeat
Week 30 — Your baby's heart beats with life
145
BPM
Your baby's heart has beaten 38,359,800 times since conception
Pregnancy Achievements
Heartbeat Hero
Week 6 — Heart starts beating
Tiny Human
Week 10 — All organs formed
1st Trimester Champion
Week 13 — First trimester complete
Halfway There!
Week 20 — 50% complete
Viability Victory
Week 24 — Baby could survive outside womb
Dream Weaver
Week 28 — REM sleep & dreaming begins
Full Term Fantastic
Week 37 — Early term reached
Due Date Dynamo
Week 40 — Due date reached!
Significant Milestones in Embryo/Fetal Development
✨
Week 2
🧪
Positive pregnancy test
September 03, 2025
Week 4
❤️
Organs begin to form, heart starts beating
September 10, 2025
Week 5
🩺
Major organs have formed, heart can be heard
October 15, 2025
Week 10
🛡️
Second trimester, risk of miscarriage decreases
October 29, 2025
Week 12
📢
Now is a good time to announce your pregnancy
November 12, 2025
Week 14
👁️
Your baby can now see light
November 19, 2025
Week 15
🔍
Your baby's gender is visible on ultrasound
November 26, 2025
Week 16
🤰
You can feel your baby move around
December 10, 2025
Week 18
👂
Your baby can now hear sounds
December 17, 2025
Week 19
🏥
Premature babies have a chance to survive
January 14, 2026
Week 23
🌬️
Third trimester, your baby can breathe
February 11, 2026 — You are here
Week 27
💅
Fingernails and toenails have formed
March 18, 2026
Week 32
✅
Your baby is now considered full term
April 22, 2026
Week 37
🎉
Your baby is due any time now!
May 13, 2026
Week 40
Weekly Development Progress
Baby is now just cooking away nicely. He or she weighs about 3 lbs now and will continue to put on about 0.5 lbs per week until the birth. As a result of this weight gain, your baby's skin is becoming much less transparent, and much less wrinkly as the skin indents are filled out with fat. He or she also measures between 15 and 16 inches long and will only grow a few more inches before birth; the average length of a newborn is about 20 inches.
The lungs and the brain are doing some finishing touches. The lungs are practicing breathing with the help of the open nostrils, although no air is involved just yet. The brain is becoming more advanced, and is starting to control more of your baby's movements. For example, your baby can now move it's head and can grab onto objects even tighter than before, especially the umbilical cord. Don't worry, Baby may be strong, but he or she isn't quite strong enough to cut off the oxygen or nutrient supply!
Your baby takes up most of your uterus now, surpassing the placenta and amniotic fluid. This means it's getting a bit cramped in there, and Baby doesn't have much room to move. You may feel knees and elbows poking through as Baby tries to get comfortable, and you'll probably be able to tell what position your baby is in. The bum is one of the easiest parts to locate; it's big and round!
Video & Ultrasound Pictures
Video
Development Week 30 Video
Ultrasound Week 30 Picture
Ultrasound Week 30 Picture
Baby's First Year Preview
First smile
~Jun 2026 (6-8 weeks)
Lifts head during tummy time
~Aug 2026 (2-4 months)
First laugh
~Sep 2026 (3-4 months)
Grasps objects
~Sep 2026 (4-6 months)
Rolls over
~Oct 2026 (4-6 months)
First solid food
~Nov 2026 (6 months)
Sits up independently
~Nov 2026 (6-7 months)
First tooth appears
~Dec 2026 (6-10 months)
Crawling
~Jan 2027 (7-10 months)
Stands with support
~Feb 2027 (8-10 months)
First words ("mama"/"dada")
~Mar 2027 (9-12 months)
First steps
~Apr 2027 (9-15 months)
First birthday!
~May 2027 (12 months)
Baby's Weight Journey
Your baby weighs approximately
1,319g
(2.9 lbs)
+166g this week — about the weight of an apple!
Baby's growth curve (weeks 8–42)
What Your Baby Can Hear
Your baby can hear! Here's what they're listening to right now:
Your heartbeat
The most comforting sound — a constant rhythm of ~80 bpm
Blood flowing
A whooshing sound similar to white noise
Digestion
Gurgling and rumbling from your stomach and intestines
Your voice
Muffled but recognizable — they'll know it at birth!
Music
External sounds reach baby at about 50% volume
Other voices
Partner and family voices become familiar too
Loud noises
May startle at sudden sounds like a dog barking
Click a sound to hear what it sounds like inside the womb. Synthesized using Web Audio API.
Hearing Development Timeline
Week 6
Inner ear begins forming
The cochlea and vestibular system start developing from the otic placode.
Week 16
Ears reach final shape
The outer ears are now fully formed and in their correct position on the head.
Week 18
First sounds detected
Baby begins to hear internal sounds: your heartbeat, blood flow, and digestive system.
Week 22
Responds to voices
Baby can hear your voice and may respond to it with movement. They prefer low-pitched sounds.
Week 25
Reacts to music
Baby can hear music and external sounds. Studies show babies prefer classical and soft music.
Week 27
Startles at loud noise
The auditory system is mature enough to startle at sudden loud sounds.
Week 32
Recognizes your voice
Baby can distinguish your voice from others and shows a preference for it after birth.
Week 35
Remembers music
Research shows babies can remember and recognize melodies heard in the womb after birth.
💡 Tip: Talk, sing, and play music for your baby! Research shows that babies recognize sounds they heard frequently in the womb, and it can be soothing for newborns.
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