Pregnancy lasts about nine months as the embryo implants in the uterus and develops into a fetus. During this time, all the baby's organs form, they grow in size and weight, their bones harden, and they begin moving and practicing breathing. By the end of the nine months, the baby is ready to be born, weighing around 3.5 kilograms and measuring 50 centimeters long.

1. Pregnancy is the time
that a foetus spends in its
mother’s womb.
Pregnancy lasts for about
nine months.

2. When a sperm from a man joins with an egg from a woman,
they are transformed into an embryo.

3. Once the embryo reaches the uterus, it searches for a nice
place to implant.

5. The embryo starts growing and taking the shape of a human
body. The heart is one of the first organs to develop.

6. During the third month of pregnancy, the baby’s bones become harder.
The baby’s head is the biggest part of their body. S/he weighs about 14
grams and is approximately 9 cm in total length.

8. All of the baby’s teeth have formed and you can even have a scalp hair
pattern. The baby is about 85 grams and 16 cm.

9. The weight is now up to 283 grams and the baby measures about
25 cm total length.

10. The baby is moving and practicing breathing for when he or she
will be born. S/he weighs 595 grams and 30 cm total length.

12. The baby’s head begin to start turning down. The baby is about
35 cm and weighs about 1 kilogram. Some babies are born at this
time of the pregnancy.

13. The baby can control their eyes. S/he opens and closes them at
will. S/he is now 1.7 kilograms and 40 cm.

14. The baby’s organs have been finished forming. Now s/he is ready
to be born. The baby measures about 50 cm and is about 3.5
kilograms.