The first day of pregnancy is considered the first day of the last period because most women cannot know for sure when their most fertile day was, nor is it possible to know exactly when fertilization took place, as sperm can survive up to 7 days within the woman. Body.
From the moment of conception, the woman’s body begins a process of innumerable transformations, the most important being the thickening of the lining of the uterus, called the endometrium, to assure the baby a safe place to develop.
- After conception.
- The developing embryo sends a message to the pituitary gland of its existence.
- Through the hormone Beta HCG.
- Suppressing the next menstruation and maintaining high levels of progesterone throughout pregnancy.
As there is no placenta yet, the embryo behaves independently of the mother, however, it already depends on the mother’s body to receive the coat needed for its development. The placenta usually develops around 12 weeks gestation, when your baby’s needs become more demanding. requiring more blood, oxygen and nutrients.
Learn more about how design works and what happens in a woman’s body
The embryo is still very small, weighing only 1 g, being smaller than the head of a pin.
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During the first 3 weeks of pregnancy, the woman’s body begins to adapt to generate a baby, once the sperm has entered the egg, a moment called conception, the cells of the father and mother come together to form a new tangle of cells that, in about 280 days, will become a baby.
During these weeks, the woman’s body already produces several types of hormones important for pregnancy, mainly beta HCG, a hormone that prevents an upcoming ovulation and expulsion of the embryo, stopping the woman’s menstrual cycle during pregnancy.
During these first few weeks, women rarely notice the symptoms of pregnancy, but the more attentive ones may feel more swollen and sensitive, becoming more emotional. Other symptoms include: pink vaginal discharge, colic, sensitive breasts, fatigue, dizziness, sleep and headaches and fat. Skin. Discover the first 10 symptoms of pregnancy and when to take the pregnancy test.
To make your life easier and not waste time searching, we’ve separated all the information you need for each trimester of pregnancy. What neighborhood are you in?