Fetal Growth Calculator


First day of your Last Menstrual Period

You are now in 7th week of your pregnancy and the fetal age is 6 weeks, 5 days.

In this pregnancy week ...
  • The head is about ⅓ the size of the entire embryo.
  • Brain and face are developing rapidly, back of baby’s head is growing faster than the front, and nostrils and lenses of the eyes begin to form. Mouth and tongue are starting to form.
  • Baby’s bones are beginning to form, as well as their facial features now becomes more recognizable.
  • Arm buds become paddle-shaped, hands and legs begin to form though they still look like paddles, flapping around from the side of their chest and the hand plates become present.
  • Baby’s sex glands are starting to form, the genital tubercle is present, but baby boy or a baby girl is not distinguishable yet by sight. Nasal pits are forming.
  • Baby's growth is concentrated on their brain this week and around 100 new brain cells are forming every minute.
  • Baby will grow to average length of about ½ inch or 8 to 11 cm Crown to Rump (CR) towards the ends of this week.

First trimester starts on very first day of your last menstrual cycle on 15-Mar-2025 and ends on 07-Jun-2025

Second trimester is from 08-Jun-2025 to 20-Sep-2025

While Third trimester begins 21-Sep-2025 onwards.

The expected date of birth of your baby is 20-Dec-2025, however depending upon fetal growth and your age, the baby may be born between 06-Dec-2025 and 27-Dec-2025.

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 6Growth in Week 8  ► 
Jun - 2024
SuMoTuWeThFrSa
      1
2345678
9101112131415
16171819202122
23242526272829
30      
Sep - 2024
SuMoTuWeThFrSa
1234567
891011121314
15161718192021
22232425262728
2930     
Nov - 2024
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
Feb - 2025
SuMoTuWeThFrSa
      1
2345678
9101112131415
16171819202122
232425262728 
Mar - 2025
SuMoTuWeThFrSa
      1
2345678
9101112131415
16171819202122
23242526272829
3031     
Apr - 2025
SuMoTuWeThFrSa
  12345
6789101112
13141516171819
20212223242526
27282930   
Pregnancy Trimesters
»  First Trimester
»  Second Trimester
»  Third Trimester
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Beyond 40 weeks
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