Log In Sign Up

First trimester fetal development facts & pictures

Welcome to the JustMommies Message Boards.

We pride ourselves on having the friendliest and most welcoming forums for moms and moms to be! Please take a moment and register for free so you can be a part of our growing community of mothers. If you have any problems registering please drop an email to [email protected].

Our community is moderated by our moderation team so you won't see spam or offensive messages posted on our forums. Each of our message boards is hosted by JustMommies hosts, whose names are listed at the top each board. We hope you find our message boards friendly, helpful, and fun to be on!

Reply Post New Topic
  Subscribe To 2012 Playroom LinkBack Topic Tools Search this Topic Display Modes
May 3rd, 2011, 09:09 PM
Gaby&Emmy'sMama's Avatar aka NZ-Emma
Join Date: Aug 2005
Location: Christchurch, NZ
Posts: 56,618
Here are some general facts about fetal development in the 1st trimester!

Week 3

- brain, spinal cord, heart & gastrotintestinal tract begin to form

Week 4 & 5
- arm & leg buds are visible, but not clearly distinguishable
- heart begins beating & steadily increases, reaching its peak at 9 weeks
- placenta begins to form & produce important hormones
- structures that will become the eyes & ears start forming
- blood begins moving through main vessels
- embryo is 1/4" long by the end of week 5

Week 6

- lungs, jaw, nose, palate begin to form
- hands and feet have webbed structures that'll become toes & fingers
- brain continues forming
- vaginal u/s may detect an audible heartbeat
- embryo is 1/2" long by the end of week 6

Week 7

- every essential organ has begun forming
- hair & nipple follicles are forming
- eyelids & tongue begin forming
- elbows & toes are more visible as embryo begins to straighten out

Week 8
- ears continue forming internally & externally
- bones are beginning to form
- muscles are beginning to contract
- facial features continue to mature
- the embryo is 1" long by the end of week 8

Week 9-13
- week 9 = embryo becomes a fetus
by the end of week 13:
- genetalia have clearly formed into male or female, but can't yet be clearly seen on u/s
- the eyelids close & won't open again until the 28th week of pregnancy
- the fetus can make a fist
- buds for baby teeth appear
- the head is nearly half the entire size of the fetus
- the fetus is about 3" long & weighs 1oz by the end of week 13

and now for some images!!! the real photos are after the u/s photos - just a warning incase some people feel uncomfortable looking at those photos!

1st trimester ultrasound images

4 weeks LMP

6 weeks LMP

8 weeks LMP

10 weeks LMP

12 weeks LMP

REAL embryonic & fetal images

4 weeks LMP

6 weeks LMP

8 weeks LMP

10 weeks LMP

12 weeks LMP

Reply With Quote
May 15th, 2011, 12:12 AM
BoobyDutyAgainJen's Avatar Proud Mom & Birth Mom
Join Date: May 2007
Location: Massachusetts
Posts: 28,941
Send a message via AIM to BoobyDutyAgainJen
Great info!! So cool!

Thanks *Kiliki* for the precious siggy!

Reply With Quote
May 17th, 2011, 09:32 PM
Gaby&Emmy'sMama's Avatar aka NZ-Emma
Join Date: Aug 2005
Location: Christchurch, NZ
Posts: 56,618
thanks I don't know about everyone else, but I absolutely love learning about fetal development & seeing pictures of babies at the point in pregnancy I'm at... (well, when I was pregnant, obviously!)

Reply With Quote
June 2nd, 2011, 08:24 PM
Doodlebug06's Avatar Doodlebug
Join Date: May 2011
Location: US
Posts: 1,397
How do they get the "real" images?? I prob sound dumb but I'm confused.

Jade Ja Kang
10:52 a.m.
18.5 inches
6lb 10 oz

Reply With Quote
June 4th, 2011, 01:16 AM
NutMeg76's Avatar Platinum Supermommy
Join Date: Oct 2006
Location: United States
Posts: 20,689
Some of the real pictures are taken when they go in to remove an ectopic pregnancy

This is from an interview with the artist that took most of hte pictures of fetuses:
To be able to show the development of the foetus at all from the very earliest stage, I used macro-lenses and wide-angled special optics, manufactured specially for me by Karl Storz in Germany and Jungners Optiska in Stockholm. And for technical reasons related to photography, I had to use foetuses from what are called extrauterine pregnancies. But I have also shot living foetuses in the womb using an endoscope. These days, I work with ultrasound and three-dimensional pictures taken through the skin from outside the body. It is a tremendously exciting technique, although it still doesn’t reach the same technical quality as my old pictures. But it has allowed me to capture the facial expressions of foetuses, for example, which I couldn’t do before.
-Lennert Nilson

When they persisted in questioning him, he straightened up and said to them, "Let the person among you who is without sin be the first to throw a stone at her." John 8:7
Sail Back to Me

Last edited by NutMeg76; June 4th, 2011 at 01:29 AM.
Reply With Quote
June 11th, 2011, 06:22 PM
Jaz.MomTo1's Avatar hoping & praying
Join Date: Oct 2008
Location: Southern Belle
Posts: 1,518
Thanks for posting this! The info is great!
My little PRINCE is due January 29, 2012

Interracial Love
Reply With Quote

fetal development, ultrasound pictures

Topic Tools Search this Topic
Search this Topic:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -7. The time now is 03:19 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0