Fetal Growth Calculator


First day of your Last Menstrual Period

You are now in 23rd week of your pregnancy and the fetal age is 22 weeks, 1 day.

In this pregnancy week ...
  • The eyes of baby are formed but lack pigmentation. Body proportions are similar to a newborn’s, though the fetus is still thin. The baby's fingernails are almost fully formed, and the lanugo darkens.
  • For baby boy testicles begin to descend into the groin from the abdomen and for a baby girl the uterus and ovaries have developed.
  • Baby is starting to form an important substance in its lungs, known as surfactant which will help its tiny alveoli to stay open when it is born.
  • Baby's heart chambers and major blood vessels can now be seen on ultrasound, although they are still very small, they will continue to grow through the rest of pregnancy and at birth, the heart will be around the size of a walnut.
  • Baby has developed its hearing and its ears are fully functioning, baby at this stage often reacts to loud and sudden sound such as dog barking, door slamming, car backfiring and often will make its jump inside your belly.
  • Baby’s bones are hardening and baby now makes stronger and coordinated baby kicks instead of little flutters and can now move all its muscle.
  • Baby will grow to average length of about 11.38 inches or 28.9 centimeter Crown to Heel and weighs about 1.10 pound or 501 grams towards the ends of this week.

First trimester starts on very first day of your last menstrual cycle on 26-Dec-2023 and ends on 19-Mar-2024

Second trimester is from 20-Mar-2024 to 02-Jul-2024

While Third trimester begins 03-Jul-2024 onwards.

The expected date of birth of your baby is 01-Oct-2024, however depending upon fetal growth and your age, the baby may be born between 17-Sep-2024 and 08-Oct-2024.

Note: Information provided above is for general education only, growth of baby inside womb depends upon many factor and growth of your baby may differ slightly than indicated above, please seek medical advice whenever in doubt.

◄ Growth in Week 22Growth in Week 24  ► 
Jul - 2023
SuMoTuWeThFrSa
      1
2345678
9101112131415
16171819202122
23242526272829
3031     
Sep - 2023
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
Nov - 2023
SuMoTuWeThFrSa
   1234
567891011
12131415161718
19202122232425
2627282930  
Dec - 2023
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
31      
Feb - 2024
SuMoTuWeThFrSa
    123
45678910
11121314151617
18192021222324
2526272829  
Mar - 2024
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
31      
Apr - 2024
SuMoTuWeThFrSa
 123456
78910111213
14151617181920
21222324252627
282930    
May - 2024
SuMoTuWeThFrSa
   1234
567891011
12131415161718
19202122232425
262728293031 
Pregnancy Trimesters
»  First Trimester
»  Second Trimester
»  Third Trimester
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