The change in the tone of the autonomic nervous system leads to dizziness, irritability and even tearfulness. The first trimester is most often accompanied by an aggravation of the individual traits inherent in a woman. Do not measly yourself for mood swings! Over time, everything will return to its original course. By the second trimester, the expectant mother gradually adapts to her condition, becomes more calm. In the third trimester - preparing for the upcoming births - you will completely get hold of the thoughts about the child, fears will recede, and you will eagerly await the appearance of your baby. What are the changes in the body during pregnancy?
Body and appearance
In the early stages of pregnancy, the expectant mother now and again peeps into the mirror to mark the changes in her appearance. The first to respond to your new condition is the mammary glands: from the 6th to 8th week they are nagged and significantly increase in size, the pigmentation of the nipples becomes more pronounced. By the beginning of the second trimester colostrum may start to be allocated - this is normal, do not be scared! The tummy will be rounded to the 18-20th week. Weight gain is uneven: in the first trimester, you can collect only 1-2 kg, but in the second and third "catch up" (10-12 kg).
Genital organs
With the onset of pregnancy, the main changes occur with the uterus. Its weight from the original 50 g to genera will increase to 1000 g. The mucosa of the genital tract from the first days of conception becomes "loose" - due to increased blood supply. The skin and mucosa of the external genitalia are pigmented, in some cases acquiring a bluish tinge. Separation from the genitals during pregnancy can have a specific smell. This problem is solved with the help of strengthened hygienic procedures. The dense mucus begins to accumulate in the cervical canal, forming a slimy plug (its purpose is to protect the fetus from adverse effects from outside). By the third trimester of pregnancy, the cervix is loosened and becomes more vulnerable.
Endocrine system
From the first day from the moment of conception the organism receives information about this event with the help of special biologically active substances - hormones. In the first trimester, the responsibility for the maintenance of pregnancy is borne by the ovaries, namely the yellow body formed on the site of the ripened follicle. The hormone of pregnancy progesterone creates conditions for attaching the fetal egg and further normal development of the embryo. Starting from the 12th week, the placenta ripens, which releases the necessary hormones for the preservation of pregnancy. The glands of the endocrine system start to work more actively: thyroid and adrenal glands. Thanks to this, all the necessary microelements and biologically active substances enter the fetus.
Metabolism and organs of secretion
In the body of a woman with the onset of pregnancy, two processes occur simultaneously: an increase in metabolism and accumulation of nutrients for the fetus (proteins, fats and carbohydrates). The future mother needs more oxygen, because now she provides not only herself, but also crumbs. It is also necessary to be very attentive to your diet. There may be a tendency to constipation.
How the kidneys work
In the body of a pregnant woman, sodium is retained - this is necessary in order to keep water in the body, which enters the ligament apparatus to soften the pelvic articulations. The change in metabolism reacts to urine. Kidneys have to work harder to cleanse the slag immediately two bodies: a future mother and baby. You will notice that you have to go to the toilet more often. In the early stages of pregnancy, blood flow in the kidneys increases, which leads to more intense urine formation.