The human pregnancy is the process of gestation for which the fetus is developing normally for nine months inside the womb of the mother until the moment of his birth.

During that time both the mother and the child experienced many changes. Pregnancy should be monitored by a doctor specializing in obstetrics assessing the normality of the process and make the necessary controls to correct problems arising time.

Detection of pregnancy

The first symptom for which a woman is pregnant, often suspect that is the absence of menstruation.The confirmation is obtained through the analysis of blood and urine.

The analysis detected the presence of a particular hormone produced by the placenta, the HCG (Coriónica gonadotropin hormone).

These tests should not be done before 10 days after fertilization, because the result is always negative. If the test is positive done at home should go to the doctor who will confirm the result through a blood test.

From the first consultation the gynecologist indicate a likely date of birth from the date of the first day the last menstruation and data on the size of the fetus obtained from the ultrasound.

First trimester

This is the most problematic area, in which many women suffer more discomfort and one in which most at risk of abortion.

The physical changes in women during the initial three months are not the most visible, though there is an increase in the chest and at the end of the abdomen is already more or less bulky.

During this time expectant mothers experiencing discomfort such as nausea, dizziness, stomach problems, most frequently in urination, and presence of sleep in a very usual.

Too often due to hormonal changes the character becomes much more sensitive and specific preferences emerge, which popularly are called cravings. In many cases women generate ascos certain odors or flavors. Many of these changes and discomfort disappear at the end of this quarter.

The fetus in the three months to increase its size and substantially beginning to be observable parts of his body, in addition to the head, as the extremities. His heart beats and the rest of their machines are already being formed.

Second trimester

It stretches from week 13 to 26. During these months the women change their appearance dramatically increasing significantly in weight. The dizziness and nausea disappear, but more often increased urination and stomach discomfort as gastric acidity.

Starting the fourth month it is possible to detect the sex of the baby who already has human appearance. The percentage of success is higher in the case of males. The fetus is covered in this time of a kind of fluff that is called lanugo.

Its development is dizzying, and has clearly formed all parts of his body and starts moving. In the sixth month and can measure about 25 centimeters and have nails, hair and be able to open their eyes.

It is believed that during this quarter, the fetus begins to acquire the capacity to listen to the noises that occur on the inside of her mother and subsequently from abroad.

Third trimester

During the third quarter the woman reaches its maximum weight, has often swelling of legs, back pain and the resulting fatigue.

The pressure of the baby becomes more intense on the rest of the bodies so upset stomach increase, and the frequency of urination. It also experiences the sensation of breathlessness.

They begin to feel contractions of Braxton Hicks. It is not painful, because only manifest themselves with tension and hardening of the abdomen. There are movements of the uterus preparation for childbirth.

The fetus continues to grow, fat develops beneath your skin. The lungs are finalized train and gradually increases their ability to breathe.

During this time will increase from the three kilogram or more of which weighed three kilograms at birth. His lanugo crash and be colará upside ready to come into the world.

Precautions

Pregnant women must take a series of special care recommended by specialists. Most doctors recommend that precautions are designed to avoid any damage on the health of the baby.

Some of the most common medical recommendations are as follows:

·  Avoid consumption of snuff, alcohol and other substance harmful to health.

·  Maintain a balanced diet containing the nutrients necessary inputs.

·  Avoid make great physical effort.

·  Maintain regular physical activity, sports practice without abrupt and always depending on the circumstances of each pregnancy.

·  Do not consume any medicine that is not recommended by a doctor who knows the state of gestation.

·  Inform doctors of pregnancy before undergoing any medical evidence as radiological.

·  Visit the specialist with the frequency that it recommends.

Remarks

One of the technological advances in this field, are ultrasound scans in four dimensions that allow us to observe the fetus clearly and witness their movements, gestures and sollozos.