The Second Trimester
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Typically weeks 14-27 are considered the second trimester.  Most women find this time the most comfortable of their pregnancy.

All these changes....

Mother:

The uterus has risen in the abdomen decreasing pressure on the bladder
The breasts may begin to secrete colostrum
The mother may feel the baby's movements now.
The mother may experience back and leg pain, constipation, varicose veins, or mild swelling of the ankles, feet, hands, and face.

Baby:

The head has hair, as do the eyebrows and eyelashes.
The baby's heartbeat can be heard with a stethoscope.
The baby's movements can be felt by the mother.
The baby is 30cm or 12 inches, and weighs 600 grams or 1 1/4 lb by 24 weeks.
By 26 weeks, the baby's outline may be felt through the abdomen.

And these tests....

AFP - Alfa Fetal Protein test, also sometimes part of the Triple Screen or Quadruple Screen which tests for the possiblility of chromosomal abnormalities or Neural Tube Defects is done around 15 weeks.  You should be aware that there are often false positives with this test, and it is just a preliminary test to see if others (such as amniocentesis) are necessary.

Ultrasound is often done around 20 weeks to confirm the due date and check for growth and abnormalities.  At this ultrasound, many doctors will also be able to tell you the gender of your baby if you want to know.

Around 24-28 weeks most doctors will do a glucose screening for gestational diabetes.

 

Some great links

Second Trimester Ultrasound Pictures - Weeks 13-18

Second Trimester Ultrasound Pictures - Weeks 19-22

Second Trimester Ultrasound Pictures - Weeks 23-26

Your baby's development, week by week

Development Photos

 

There is a risk that your baby could be born this trimester.  For more information on prematurity Check out the March of Dimes website.

Copyright © 2007 Beyond Pregnancy.  All rights reserved.
Revised: 03/27/07.