Obvious Changes in The First Trimester of Pregnancy

These alterations of the first trimester are produced by the action of hormones, fundamentally progesterone. In this stage, uterus grew rapidly and metabolic expenditure increase, necessary to meet the needs of fetal development and the future baby, in addition to adapting the maternal body to your new biological needs. The midwife said, “All these changes, which are the most significant, are normal.”

Physical and psychological changes in women in the three months of pregnancy

The maternal organism undergoes anatomical and functional modifications that allow it to create a space in which the gestation of the fetus proceeds smoothly. Also, the mother’s body prepares for the moment of childbirth, delicate and violent at the same time, and a tender postpartum in which she will have to breastfeed her newborn daughter or son.

Menstruation or period: Amenorrhea will be very obvious in those women with very regular menstruation cycles, which usually occur every 28 days. Sometimes the period is mistaken for so-called implantation bleeding, which occurs when the fertilized egg joins the intrauterine wall.

Breasts or breasts: Increase from the second month of gestation, with hypertrophy and glandular hyperplasia. Vascularization, areola pigmentation, and breast tenderness are emphasized. The nipple of the breast is tended more firm.

Tiredness and sleep: Many pregnant women feel tired and need to sleep longer. Your body is preparing to cope with your baby’s gestational stress.

It is advisable for the woman to sleep at least eight hours every day, lying on her left side for potential blood circulation. Pillows should become elements not only of comfort but of general well-being to obtain a more joyous and less bothersome pregnancy.

Sleeping or resting in the supine position, face-up, tends to compress the uterus over the vena cava, the bladder, and the digestive system, generating, in relation to the time of gestation, paleness, dizziness, coldness, and hypotension.

Frequent urination: Hormonal stimulation results in dilation of the renal pelvis and both ureters; the increase in the blood level, up to 50%, and the growth of the uterus determine the need to urinate more times than normal.

The blood flows faster, and with greater quantity, to the kidneys, which produces greater filtering of substances to evacuate. The bladder is therefore filled more frequently. With the passing of the weeks of gestation, it can cause abundant secretion of urine and more at night than during the day.

Nausea and vomiting: The hormonal cause is behind. Human Chorionic Gonadotropin (HCG) is very high in the first trimester and three out of four women suffer from nausea, even more, when they wake up; some throughout the day. If accompanied by vomiting, women will feel exhausted. Most will stop feeling this discomfort by week 14, although the feeling can be felt again during pregnancy.


The psychological component could also be a trigger for nausea and vomiting, since a large number of women react to the odors and stress of their new stage, which adds to their daily work and social life, with nausea and vomiting.

Affective ambivalence: “In the first trimester there is a ride between desire and fear, and what is called ambivalence occurs, which means that, when faced with the same event, pregnancy, there are contradictory feelings… two opposite emotions, such as desire and reluctance. It is a transitory state of mind, only permanent at times,” the midwife said.

Anxiety becomes a symptom of a pregnant woman. She faces a vital period with great emotional implications: fears and doubts about her body image, couple and family relationships, friendships, work, financial situation, and the mother’s own personality

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