๐Ÿ“ Baby's Size This Week

Week 18
Bell pepper
Bell pepper
Your baby is about the size of a bell pepper this week
5.59 inches
14.2 cm
Length
6.70 ounces
190 grams
Weight

๐Ÿ“‹ Baby Status

๐Ÿ’“
Heart Rate
110-180 bpm
๐Ÿซ
Hiccup Episodes
~3per day
๐Ÿ˜ด
Sleep Time
90โ€“95%of the time

๐Ÿ’“ Listen to Your Baby's Heartbeat

Week 18 - Your baby's heart beats with life

145 BPM
Your baby's heart has beaten 19,295,150 times since conception

๐Ÿ… Pregnancy Achievements

๐Ÿ’“
Heartbeat Hero
Week 6 - Heart starts beating
๐Ÿ‘ถ
Tiny Human
Week 10 - All organs formed
๐Ÿ†
1st Trimester Champion
Week 13 - First trimester complete
โญ
Halfway There!
Week 20 - 50% complete
๐Ÿ›ก๏ธ
Viability Victory
Week 24 - Baby could survive outside womb
๐Ÿง 
Dream Weaver
Week 28 - REM sleep & dreaming begins
๐ŸŽฏ
Full Term Fantastic
Week 37 - Early term reached
๐ŸŽ‰
Due Date Dynamo
Week 40 - Due date reached!

๐Ÿ† Significant Milestones in Embryo/Fetal Development

1st Trimester
2nd Trimester
3rd Trimester
โœจ
December 19, 2025
Week 2
๐Ÿงช
January 02, 2026
Week 4
โค๏ธ
January 09, 2026
Week 5
๐Ÿฉบ
February 13, 2026
Week 10
๐Ÿ›ก๏ธ
February 27, 2026
Week 12
๐Ÿ“ข
March 13, 2026
Week 14
๐Ÿ‘๏ธ
March 20, 2026
Week 15
๐Ÿ”
March 27, 2026
Week 16
๐Ÿคฐ
April 10, 2026 - You are here
Week 18
๐Ÿ‘‚
April 17, 2026
Week 19
๐Ÿฅ
May 15, 2026
Week 23
๐ŸŒฌ๏ธ
June 12, 2026
Week 27
๐Ÿ’…
July 17, 2026
Week 32
โœ…
August 21, 2026
Week 37
๐ŸŽ‰
September 11, 2026
Week 40

๐ŸŒฑ Weekly Development Progress

Your baby's about 5.5 inches from head to toe, although when you go for your ultrasound the sonographer may measure from head to bum, as it's much easier due to the curled up position your baby is in. Your newborn will remain in this shrimp-like position for a few weeks after the birth, until they realise they have room to spread themselves out.

Weighing in at about 6.5 ounces, your baby is getting heavier by the day. The main activity at the moment is putting on fat, as your baby's organs continue to mature and grow. Adding fat and putting on weight keeps your baby nourished, healthy and warm. Once he or she has enough fat, the fine hair covering the body will start to vanish, as it's no longer required for warmth. The fat is also helping the skin to become more opaque, although at this point the blood vessels inside your baby can still easily be seen - that's if you could peek into your uterus, of course.

Read more... →

๐ŸŽฌ Video & Ultrasound Pictures

Development Week 18 Video
Video
Development Week 18 Video
Ultrasound Week 18 Picture
Ultrasound Week 18 Picture
Ultrasound Week 18 Picture
Ultrasound Week 18 Picture

โš–๏ธ Baby's Weight Journey

Your baby weighs approximately
6.7 oz (190g)
+1.8 oz this week - about the weight of an egg!
Baby's growth curve (weeks 8โ€“42)
0 lb 2 lb 4.1 lb 6.1 lb 8.1 lb 6.7 oz 8 12 16 18 20 24 28 32 36 40 Week

๐ŸŽต What Your Baby Can Hear

๐ŸŽง

Your baby can hear! Here's what they're listening to right now:

๐Ÿ’“
Your heartbeat
The most comforting sound - a constant rhythm of ~80 bpm
๐Ÿฉธ
Blood flowing
A whooshing sound similar to white noise

Click a sound to hear what it sounds like inside the womb. Synthesized using Web Audio API.

Hearing Development Timeline
๐Ÿซ˜
Week 6
Inner ear begins forming
The cochlea and vestibular system start developing from the otic placode.
๐Ÿ‘‚
Week 16
Ears reach final shape
The outer ears are now fully formed and in their correct position on the head.
๐Ÿ’“
Week 18
First sounds detected
Baby begins to hear internal sounds: your heartbeat, blood flow, and digestive system.
๐Ÿ—ฃ๏ธ
Week 22
Responds to voices
Baby can hear your voice and may respond to it with movement. They prefer low-pitched sounds.
๐ŸŽต
Week 25
Reacts to music
Baby can hear music and external sounds. Studies show babies prefer classical and soft music.
โšก
Week 27
Startles at loud noise
The auditory system is mature enough to startle at sudden loud sounds.
โค๏ธ
Week 32
Recognizes your voice
Baby can distinguish your voice from others and shows a preference for it after birth.
๐Ÿง 
Week 35
Remembers music
Research shows babies can remember and recognize melodies heard in the womb after birth.
๐Ÿ’ก 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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