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Sneak a Peek 4D Ultrasounds
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    • Home/Buy e-Gift Cards
    • Pick LOCATION
      • Arnold
      • Fenton
      • Columbia, MO
      • Columbia, IL
      • Chesterfield
      • Creve Coeur-Ballas
      • Creve Coeur-Olive
      • St. Charles
      • Wentzville
    • Sent By Midwife?
    • Photography
    • Gender blood tests
    • Contact us
    • About Us
    • Gallery
Sneak a Peek 4D Ultrasounds
  • Home/Buy e-Gift Cards
  • Pick LOCATION
    • Arnold
    • Fenton
    • Columbia, MO
    • Columbia, IL
    • Chesterfield
    • Creve Coeur-Ballas
    • Creve Coeur-Olive
    • St. Charles
    • Wentzville
  • Sent By Midwife?
  • Photography
  • Gender blood tests
  • Contact us
  • About Us
  • Gallery

3D & 4D Ultrasound in Fenton, mo

See Your Baby in 2D, 3D, 4D & HD Live
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By appointment only, 7 days a week (hours vary)

Sneak a Peek 4d Ultrasounds

794 Gravois Bluffs Blvd suite c, Fenton, MO 63026, USA

Call or text (314) 835-7935

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Ultrasound Packages

Add twins to any ultrasound package for just $20.

For only $20 add this to any package for the scan of the second baby.   

Transvaginal (typically 5 1/2 to 7 1/2 weeks)

$75 – 2–3 minute transvaginal ultrasound for viability or pregnancy dating, typically performed between 5 1/2 to 7 1/2 weeks.

Includes 2 black & white printed images of your baby.

For entertainment purposes only. Not a medical or diagnostic scan.

TRANSVAGINAL SCAN GYN FOLLICLES/INFERTILITY- NON PREGNANT CLIENTS

$75 – 2–3 minute transvaginal scan


For non-pregnant clients needing endometrial thickness, ovary, or follicle-count imaging for fertility/GYN purposes.


For entertainment purposes only. Not a medical or diagnostic scan.

How's My Baby (Peace of Mind)

$60 – 10-minute 2D ultrasound


Includes fetal heart tones, measurements,2 black & white prints, and all images emailed.


Available from 8–40 weeks.

He or She, What Will I Be?

$75 – Up to 15-minute 2D gender ultrasound


Includes gender check, fetal heart tones, measurements, up to 3 black & white prints, and all images emailed.


Best for 15+ weeks.
Gender ultrasounds are most accurate at 15 weeks or later. Complimentary rescans are not offered before 15 weeks.

Sneak A Peek 3D

$99 – 20-minute 3D ultrasound


Includes gender check (if desired), fetal heart tones, measurements, 2 black & white prints, 2 color prints, and all digital images emailed.


Best for 16–27 weeks to catch a sweet glimpse of your baby’s early features.


Plus, save 25% on any Heartbeat Animal with your visit.

Mommy Platinum 3D/4D/HD/Live

$140 – 30-minute 3D/4D/HD Live ultrasound


Includes gender check (if desired), fetal heart tones, measurements, 4 black & white prints, 4 color prints, and all remaining images emailed.


Best for 28–34 weeks
for beautiful views of your baby’s movements and sweet expressions. Sessions may be booked after 16 weeks.


Plus, save 25% on any Heartbeat Animal with your session.

Ultimate Heartbeat Animal Package 3D/4D/HD/Live

$200 – 45-minute 3D/4D/HD Live ultrasound


Includes gender check (if desired), fetal heart tones, measurements, 8 black & white prints, 4 color prints, and all remaining images emailed.


FREE Heartbeat Animal with a recording of your baby’s heartbeat included!


Best for 28–34 weeks for beautifully developed facial features. Sessions may be booked after 16 weeks.

Last Peek Package (36 + WEEKS)

 $75 – Up to 15-minute ultrasound for 36+ weeks


Includes baby’s position, fetal heart tones, measurements, at least 2 black & white prints, 1 color print, and all remaining images emailed.


For 36+ weeks: We’ll try to capture 3D/4D images when possible, but due to the later stage of pregnancy, 3D/4D images and rescans are not guaranteed.


Schedule Appointment Online

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No Rescan Options are Available on the Specials


Current Specials

Christmas Special 4D Live

America's 250 celebration package
America's 250 celebration package
Christmas Special 4D Live

$199 - 30-minute 3D/4D/HD Live Ultrasound
Fetal heart tones
Measurements
Optional gender check
THREE sets of 3 black & white prints (keep one, gift two!)
All images emailed
THREE FREE Heartbeat Animals with your baby's recorded heartbeat!
Best Imaging
: You may book after 16 weeks, but optimal 3D/4D images are typically seen between 26–34 weeks.
No Rescans available on specials.

America's 250 celebration package

America's 250 celebration package
America's 250 celebration package

$250 – THREE ultrasounds One Low Price!
Ideal for a first trimester, second trimester, and third trimester scan.
First Trimester: 10-minute ultrasound ($75 value)
Second Trimester: 20-minute 3D scan ($99 value)
Third Trimester: 30-minute 3D/4D/HD Live ($140 value)
PLUS: A heartbeat animal of your choice is included! ($40 value)

thanksgiving Special 3D/4D/HD Live

thanksgiving Special 3D/4D/HD Live
thanksgiving Special 3D/4D/HD Live

$139 - 20-minute 3D/4D/HD Live Ultrasound 

  •  Fetal heart tones
  • Measurements
  • Optional gender check
  • 5 black & white prints
  •  FREE Ultrasound Frame!

Best Imaging: While you may book after 16 weeks, but optimal 3D/4D images typically seen between 26–34 weeks.


No Rescans available on specials.

gender reveal special

thanksgiving Special 3D/4D/HD Live
thanksgiving Special 3D/4D/HD Live

 $80 - 15-minute 2D Ultrasound

  • Fetal heart tones
  • Measurements
  • 5 black & white prints
  •  Remaining images emailed to you
  • FREE gender reveal cannon or sports ball-your choice!

Must be 15 weeks or later


No Rescans available on specials



Selection of HeartBeat Animals

Memory Keepsake HeartBeat Animals

Record your baby's heart beat and have this precious memory forever!  Pick your favorite animal. Special Price only $40.  With any Ultrasound Package of $99 or more save an additional 25%.  


3D & 4D Ultrasound in Fenton, MO

Our Fenton studio sits in Gravois Bluffs, just off I-44, an easy drive from Fenton, Valley Park, High Ridge, Arnold, and South County. Come see your baby in 2D, 3D, 4D, and HD Live with a trained sonographer, then take home prints and your full image gallery by email.



Copyright © 2026 Sneak a Peek 4d Ultrasounds - All Rights Reserved. Call or text (314) 835-7935. By appointment only, 7 days a week (hours vary).

  • Home/Buy e-Gift Cards
  • Arnold
  • Fenton
  • Columbia, MO
  • Columbia, IL
  • Chesterfield
  • Creve Coeur-Ballas
  • Creve Coeur-Olive
  • St. Charles
  • Sent By Midwife?
  • Photography
  • Gender blood tests
  • Contact us
  • Gallery

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