The development of the baby in the uterus occurs quickly, even though most changes go unnoticed; they aim to ensure the vital processes of the fetus as it finishes forming. Each month, the baby acquires new physiological structures, and even every week it evolves considerably.

Life is really wonderful! In fact, the development of human life in the womb is simply amazing. Did you know that everything about you – including the height of your skin, the color of your eyes and the color of your skin – was determined at the time of fertilization? Month-by-month, you have grown up in the safety and comfort of your mother’s belly until the great day of your birth has finally arrived!

Many people today have overlook the realities about human development, saying it is too “political” or “controversial”. More in this moment, the story of life developing in the womb is more difficult to disrupt these same people as it puts a marvelous and human face in the unborn child’s life.

So just how is it like in the womb? What is the first nine months like. Read on as we journey into the awesome world of how is it like in the womb month-by-month.


By counting the two weeks in which the menstrual cycle has started and the egg has been released, even if the baby has not started to develop, one can already evoke a process in progress. In fact, the first month is scheduled for fertilization to take place and for the zygote to travel to the womb  via the fallopian tube.

The fertilized egg contains the necessary materials to turn into a baby, it becomes a blastocyst and then an embryo. During this time, the mother’s body is responsible for making the necessary elements to protect the fetus during the rest of its evolution.


We can speak of the fact that it is already happening from the beginning of the fifth week, during which the so-called “embryonic period” begins. At that moment, the main structure of the fetus develops, that which will support the vital systems.

Most cell divisions are performed during this month, allowing the fetus to start differentiating specifically in many of its functions. For example, neurons and the majority of blood cells grow.

Also form:

  • The brain
  • Spinal cord
  • The heart
  • The digestive tract
  • External features


The third month of gestation can be counted between the sixth and ninth week, the changes are more obvious. At these stage, the legs and arms of the baby begin to develop, and the development of the tissues that will give birth to the bones.

In many cases, at the end of this month, the upper and lower limbs are being developed, which is why the appearance of the fingers is obvious.

Other evolutions at these stage are:

  • The regularity of the rhythm of the heart continues to form
  • The beginning of pumping blood through the main veins
  • The eyes and the ears begin to form little by little
  • The lungs began to form. Etc.


At this stage, the majority of organs have formed and are in full growth. That is why from there it is no longer an embryo, it then takes the name of fetus. In addition, the facial features become more precise.

The development is completed with the training:

  • Elbows
  • Nipples
  • Toes
  • Puffy follicles
  • Eyelids
  • Ears


At this stage, although he/she is relatively well trained,  the head will be larger than the rest of the body and her skin is almost transparent. From now on, his eyelids are formed and remain closed, which will not change until around week 28.

Other aspects of development are:

  • The appearance of the bone structure that will support the formation of teeth
  • Facial features defined
  • The proof of sexual differentiation
  • The beginning of nail development
  • The liver begins to produce red blood cells


Although at this stage the baby is more or less formed, it is still transparent, but gradually a very fine hair called lanugo will continue to grow on his/her head. However, bones and muscles are as well developed each time.

By the sixth month, the baby is already moving, he stretches and begins to test the suction of his own free will. Its activity increases because it can already hear and therefore react to stimuli; in addition, one can listen to one’s heart through a stethoscope.


By the seventh month, the baby’s eyes are well formed, and he has made his first stool deposition in the digestive tract. Although area bubbles can form in the lungs, they are not yet developed to breathe outside the uterus.

At this point his brain is almost formed, so that the fetus is able to control many of its functions because  the nervous system is well developed.


During the eighth month, the fetus still does not have the maturity of his lungs, which is quite difficult for him although he is already breathing rhythmically. It grows, however, and quickly accumulates fat; his bones are totally formed but still very soft.

At this stage, the fetus is ready to absorb and store many nutrients, but the main ones are phosphorus, iron and calcium.


The gestation period is between 34 and 40 weeks. At that time, the fetus can already weigh two and a half pounds, which can increase but not much. The fat that accumulates under the skin allows it to be less wrinkled.

In addition, all these organs are fully developed, as well as their muscles and bones. The lanugo , which occupied most of his body, is now only on his shoulders and arms, but his hair is denser.

Finally, you pass the symbolic stage of the ninth month. This time, for sure, you are in the home stretch. Stay patient, if the pregnancy lasts nine months, it is good that your baby needs this time to come to life in great shape.


Do you want to have a natural childbirth that is smooth and joyful and do you want to shorten your labor by 50%?

Then the book 'bump to birth' may be something for you!

This Book is written for mamas like you who question mainstream medicine, trust their body and instincts and take a Holistic route.

Citrine, the writer, mentions different Holistic Methods that she used in both of her pregnancies that made her pregnancies smooth and Joyful. She writes also about the secrets that helped her deal with labor pain, shorten her labor by 50% and have a good home waterbirth without medication (that literally changed her life). This e-book will help you throughout your pregnancy and help you avoid Pitocin, Epidural, Episiotomy and other Interventions.


Click here for more information on how to make your birth smoother and to shorten your labor with 50%
Yes! I want a smooth labor and pregnancy!

Leave a Comment