Early Life Stages of the First Trimester (0–13 Weeks)
Your baby is developing vital organs and growing quickly during the first trimester
Week 4
The Baby is 1 mm in size, about the size of a poppy seed. The fertilised egg joins the uterus at this point.
Week 5
The Baby reaches 2 mm, about the size of a sesame seed. The formation of the brain and spinal cord is beginning.
Week 6
The Baby reaches 4-5 mm, about the size of a lentil. The heart starts beating.
Week 7
The baby is about the size of a chickpea at 10 mm. Legs and arms begin to develop.
Week 8
The Baby is 14 mm in size, about the size of a kidney bean. Limb buds start to develop.
Week 9
The Baby is roughly 23 mm in size, or the size of a Grape. Internal organs arestarting to take shape.
Week 10
The Baby is 3 cm in size, about the size of a olive. The baby’s facial characteristics begin to grow, giving them a more human appearance.
Week 11
The Baby measures 4.5 cm, about the size of a fig. The Baby is now moving.
Week 12
The Baby measures 5.5 cm, or the size of a plum. The baby’s face is complete, and its activity level is increasing.
Second Trimester: Development and Motion (14–27 Weeks): Baby can Feel and hear you.The baby’s organs develop during the second trimester, and you can start to feel the baby move. Your baby’s growth throughout this trimester is as follows:
Week 14
The Baby is now 8.7 cm in size, or the size of a Lemon. The Baby is capable of making facial emotions
Week 15
The Baby measures 10.1 cm, or the size of an apple. The Baby’s bones are beginning to solidify.
Week 16
The Baby measures 11.6 cm, or the size of an avocado. The skin of the Baby is beginning to take shape.
Week 17
he Baby is 13 cm in size, about the size of an onion. You may begin to feel tiny movements.
Week 18
The Baby is 14.2 cm in size, about the size of a sweet potato. The Baby’s kidneys and heart are functioning.
Week 19
At 15.3 cm, the baby is the size of a mango. A layer of protection covers the skin.
Week 20
The Baby is 16.5 cm in length, about the size of a banana. The Baby is moving more and swallowing.
Week 21
The Baby measures 26.7 cm, or the size of a Carrot. More details are being added to the baby’s face.
Week 22
At 27.8 cm, the baby is the size of a papaya. The Baby is now able to hear sounds.
Week 23
he Baby measures 28.9 cm, or the size of a grapefruit. The lungs are preparing to breathe.
Week 24
The Baby is 30 cm in size, about the size of a coconut. The Baby has opened its eyes.
Week 25
At 34.6 cm, the baby is the size of corn on the cob. The Baby is becoming stronger and gaining weight.
Week 26
The Baby measures 35.6 cm, or the size of a bottle gourd. The Baby’s immune system is growing more robust.
Week 27
At 36.6 cm, the baby is the size of a cauliflower. The Baby is preparing for life beyond the womb.
28–40 Weeks of the Third Trimester: All Set to Meet You Your baby gets bigger and gets ready to be born throughout the third trimester. Here’s how your Baby stacks up against fruits in the last stretch:
Week 28
At 37.6 cm, the baby is the size of an Large Brinjal. The Baby is getting heavier.
Week 29
At 38.6 cm, the baby is the size of a pumpkin. The skin of the Baby gets smoother.
Week 30
At 39.9 cm, your baby is the size of a cabbage. The Baby begins to practise breathing.
Week 31
The Baby is 41.1 cm in size, about the size of a giant coconut. The Baby is moving more.
Week 32
At 42.4 cm, the baby is the size of a pineapple. The Baby is positioning itself for delivery.
Week 33
The Baby is 43.7 cm in size, about the size of a jackfruit. The baby’s lungs and brain are growing quickly.
Week 34
Your Baby is 45 cm in size, around the size of a large papaya. The organs of the Baby are nearly ready.
Week 35
The Baby is 46.2 cm in size, about the size of a honeydew melon. The body of the Baby is growing.
Week 36
At 47.4 cm, the baby is the size of a watermelon. The Baby is preparing to be born.
Week 37
The Baby is 48.6 cm in size, about the size of a muskmelon. The lungs of the Baby are fully formed.
Week 38
At 49.8 cm, the baby is the size of a large watermelon. The baby is nearly ready for delivery.
Week 39-40
Your baby is ready to meet the world and is about the size of a pumpkin (50–52 cm).
From a tiny poppy seed to the size of a pumpkin, your baby’s growth journey is amazing. Each week brings new developments, and comparing the baby’s size to fruits makes it easier to understand. It’s a special time, and knowing how your baby grows helps make the experience even more memorable.
Make sure to visit your doctor regularly to track your baby’s growth and development, as every pregnancy is unique. Enjoy the journey, and remember, your baby is growing stronger each day!
