First quarter, second quarter and third quarter, today We are going to know the three stages of pregnancy and their characteristics.
At each stage the fetus develops, something that causes changes in the mother You may begin to feel the baby move and there also comes a time when it feels heavy and uncomfortable due to having a very prominent belly.
Know the three stages of pregnancy and their characteristics
There are three stages of pregnancy, which each coincide with three months, each has its own peculiarities and characteristics.
1.First trimester (0 to 12 weeks)
The first months of pregnancy It is the first stage and is called "first trimester." And it is made up of a series of steps that follow one another.
Last menstruation before fertilization. Yes, although it may sometimes surprise us, pregnancy begins to be counted from the last menstruation, not the last missed menstrual period but the last normal menstruation.
Fertilization, where the fertilized egg becomes a blastocyst. This process happens approximately in week 2.
The blastocyst implants in the uterus and begins the creation of amniotic sac During week 3 and 4, it also develops and becomes stronger.
Starts on development of the fetus, What emerges during week 5 is an area that will later be the brain and spinal cord.
El heart and blood vessels Hearts begin to form and the heart can begin to be seen on ultrasound at week 6. Between weeks 4 and 6 Most women begin to feel nauseous and vomit. This can last for the remainder of the first trimester and part of the second, although sometimes throughout the entire pregnancy.
The arms and legs It begins to develop in week 7.
By week 9 there will already be bones, muscles, face, neck and, in general, the skeleton is formed. But brain waves can also be detected.
With week 10, they are already formed almost all the organs and begin to function. It is at this moment when it begins to be noticed that the fetus moves and responds to contact. The mother is already developing a larger abdomen and will have a little more weight.
2.Second trimester (13 to 24 weeks)
This stage is the central one, coinciding with mid-pregnancy months. This is where the tummy is already noticeable.
From week 14 you can recognize the sex of the fetus and he can hear.
The hands of the fetus already formed with the fingers begin to grab and make more noticeable movements. Around week 16 is when the creation of fat under the skin also begins, hair appears on the head, eyebrows and eyelashes.
La placenta finishes forming at week 20.
Is in the week 24 when the fetus could already survive outside the uterus. It is at these moments when the mother's body notices the most change, as she gains weight more quickly.
3.Third trimester (week 25 until birth)
The last months of pregnancy They are known as the "third trimester", at this stage the mother already notices that she is pregnant and the movements of the fetus are noticeably noticeable.
In week 25, activity and the continuous change in position of the fetus, the head searches for the moment of birth. It is also at this time that the lungs continue to mature. At this point in pregnancy, the usual thing is for the fetus to look around 50cm and weigh around 3,5kg. It is an already considerable size that causes the mother's navel to protrude due to the increase in volume.
On Weeks 37 to 42 the time of delivery will arrive.
An extra fact about the three stages of pregnancy
Each body, each pregnancy and each woman are unique. This implies that we can have changes in appetite, weight changes, changes in hair color, skin... There are women who barely have a belly and others who look like they have triplets. Therefore, if you have any questions, you should always go to your midwife for advice on your particular case. Another factor to take into account is the age of the mother, there are important differences between a pregnancy at 25 or one after 35.