Day 44

Length : 16 mm & weight : 0.5 grams 

• Changes in the brain - The brain connects with the nervous system and hormones producing glands begin to develop.

Day 60

Length - 3 cm & weight - 3 grams 

• The brain and nervous system develops rapidly.
• All essential internal organ begins to develop.
• Small buds that will go to form the arms and legs appear.

3 Month 

Length - 10 cm & weight - 45 grams 

• The foetus's genitals begin to appear but still cannot be distinguished as being male or female. 
• The cord is developed so that the baby can move around without any risk.
• Hands already have fully developed fingers. They have fingernails, and the shape of human extremities.
• The eyes are completely formed.
• The head is still disproportionately large in relation to the body. It represents a third of length of the foetus's body.

4 month 

Length - 15 cm & weight - 150 grams 

• Sex development - Foetus begins to reveal the differences in the urogenital system.
• Taste buds are developed at this stage although remain inactive.
• At this stage, heart beats at the mother's heart rate and number of heartbeats per minute are 160. 
• Cartilage begin to change into calcified bones.
• Legs grow rapidly and are longer than the arms.
• The tiny bones in the ear begin to harden and the foetus can sense its mother's voice and heartbeat.
• The mother can sense the foetus's first movements.

5 Month 

Length - 20 cm & weight - 500 grams 

• The foetus movements are more obvious and intense and are perceptible to the touch.
• Spinal cord begins to develop in the foetus.
• Eyes, mouth, nose and ears are almost completely formed and head develops more actively.
• Internal organs are in a maturing stage and most are already formed. However, the lungs and digestive system are not yet complete.

6 month 

Length - 25 cm & weight - 1 kilograms 

• The ears exhibit their peak development. The foetus is sensitive to sounds outside the uterus and can hear very loud sounds.
• First lines appear on palms. Fingers can be seen.
• Foetus can distinguish different flavours.
• Feets are defined and joints are developed. Baby kicks with rapid movements.

7 month 

Length - 30 cm & weight - 1.5 kilograms 

• Strengthening and calcification of bones begins. It's body needs more nutrients.
• Baby can open and close its hands as well as mouth, sticks out its tongue and can even suck its thumb.
• The organs are completely formed.

8 month 

Length - 35 cm & weight - 2.5 kilograms 

• Limbs become chubby.
• Except for the lungs, the organs are fully functional. 

Birth is imminent, and before the month is finished, most foetuses assume a head-down position.