The first trimester of pregnancy is the most exciting, but also the most delicate and the one that causes the most concern in future moms. At this stage of pregnancy, a series of changes begin that will culminate with the birth of your baby.
And it is that, from the moment of conception, the organism of the pregnant woman undergoes continuous changes. Some persist for weeks or months; others last for a short time. Also, some pregnant women show many symptoms, others hardly notice them. One of these symptoms. During this stage of pregnancy you could suffer breast enlargement, drowsiness or nausea, let’s see in detail what happens in the first trimester of pregnancy.
Changes in the first trimester of pregnancy
Increase in breast volume
At this stage of pregnancy and as a consequence of the increase in the levels of estrogen and progesterone, the mammary glands increase in size, which causes you a sensation of tension, sensitivity and pain. The areolas (pigmented area around the nipple) get larger and darken. They can be covered with small white bumps, called Montgomery’s tubercles (sweat glands that have become enlarged). The superficial veins of the breasts become more visible.
The uterus grows
The uterus grows and begins to press on the bladder. As a result of this growth, it is a rule that you notice that you need to go to the bathroom more often.
Mood swings in the first trimester of pregnancy
Partly because of the new hormone levels, you may experience PMS-like mood swings (characterized by irritability, nervousness, fluid retention, and other symptoms that occur shortly before each menstrual period).
Nausea and vomiting in the first weeks of pregnancy
The hormones necessary for the pregnancy to continue normally are also behind the typical nausea and vomiting of the first trimester. Although they are more frequent in the morning, they can occur at any time of the day (especially after several hours fasting). The good news: They rarely interfere with proper maternal and fetal nutrition.
The growing uterus puts pressure on the rectum and intestines, increasing the risk of constipation . In turn, high progesterone levels cause intestinal contractions (which allow food to move through the digestive tract) to slow down, adding more reasons for constipation and promoting heartburn, indigestion, and heartburn. gases.
The belly grows
You are already beginning to notice the tighter clothes on the chest and waist. Your belly begins to increase in size. If this is your first pregnancy, you will still have to wait a bit for others to notice that you are pregnant. Your belly still does not have a large volume so even your pregnancy could go unnoticed by others. On the contrary, if you have already had another baby, your belly will bulge sooner.
Tiredness and sleep
Physical and hormonal changes, added to the emotional stress associated with the first months of pregnancy, take their toll in the form of tiredness and drowsiness . It is normal to have that feeling of constant fatigue all day, your body is working at full capacity. Try to get as much rest as you can and, if possible, take a short nap in the middle of the day.
You may notice a decrease in sexual desire. Don’t worry: it will be back in a few weeks. Hormonal levels are altered and this can take its toll on your libido.
Increases cardiac output
The cardiac output increased between 40% and 50% between the beginning and the end of pregnancy (to meet the demands of the uterus). In turn, increased cardiac output (volume of blood leaving the ventricles with each contraction) can lead to increased heart rate (pulse).
Changes in the first trimester of pregnancy
Changes in the body
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