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What Are The Symptoms Of Pregnancy In First Month

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The first month of pregnancy is a time of wonder, excitement, and anxiety. You may be wondering if you're pregnant, what your symptoms of pregnancy in the first month might be, or when to take a pregnancy test. We'll help you figure it all out.

Symptoms Of Pregnancy In First Month

It's not uncommon to experience some of the pregnancy symptoms in the first month. Here are a few of them and what they might tell you.

Symptoms Of Pregnancy In First Month


Breast tenderness is often the first symptom of pregnancy. There is an enlargement of the breasts due to glandular hypertrophy. The axillary tail enlarges and may become painful. Bluish dilated veins appear over the breasts. The nipples enlarge and become deeply pigmented, and erectile. Hypertrophic sebaceous glands called glands of Montgomery are seen prominently in the areola. Thick, yellowish colostrum can be expressed from the nipples. Striae may appear on the skin.


Cutaneous blood flow increases making the skin feel warm. Striae gravidarum or stretch marks develop in the abdominal skin and sometimes in the skin over the breasts and thighs. They appear as reddish, slightly depressed streaks. Later, they cicatrice and become glistening silvery lines. Occasionally, diastasis of the recti is seen which can lead to a ventral hernia, if severe.

Hyperpigmentation is more common in those with a darker complexion. The midline of the abdominal skin—‘linea alba’—becomes especially pigmented, assuming a brownish-black color to form the’ linea nigra’. Due to the progressive stretching of the abdominal skin, stretch marks called ‘striae gravidarum’ tend to occur in all pregnant women. chloasma or melasma gravidarum—the so-called mask of pregnancy is irregular brownish patches of varying size that appear on the face and neck.

Pigmentation occurs in the areolae and genital skin also. After delivery hyperpigmentation regresses considerably. Angiomas or vascular spiders, telangiectasia, and palmar erythema are due to vascular changes and are more common in white women.


Maternal blood volume begins to increase during the first trimester and reaches 40 to 45% above the nonpregnant blood volume after 32 to 34 weeks. This Hypervolemia help;

  • To protect the mother and the fetus, against impaired venous return in the supine and erect positions and to safeguard the mother against blood loss during parturition.
  • Meeting the demands of the hypertrophied vascular system and
  • Providing adequate nutrients to the rapidly growing placenta and fetus.

Increased blood volume is mainly due to increased plasma volume than the actual RBC volume hence leading to dilution anemia.

The iron requirement in the second half of pregnancy averages 6 to 7 mg/day. Iron is actively transferred to the fetus even when the mother has severe iron deficiency anemia.

Gastrointestinal Tract

Pyrosis (heartburn) is common during pregnancy due to the reflux of acidic secretions into the lower esophagus as the lower esophageal sphincter tone is decreased and intraesophageal pressures are lower and intragastric pressures higher in pregnant women.

The gums may become hyperemic and softened during pregnancy and may bleed when mildly traumatized. Hemorrhoids are fairly common during pregnancy. They are caused largely by constipation

Urinary System

Kidney size increases slightly. There is dilatation of the renal pelvis and the ureters. Renal plasma flow increases early in pregnancy. The GFR increases as much as 25% by the second week after conception and reaches 50% by the beginning of the second trimester. 

About 60% of women report urinary frequency during pregnancy. Serum creatinine levels decrease during normal pregnancy from a mean of 0.7 to 0.5 mg/dL. Creatinine clearance is in pregnancy averages about 30% higher than 100 to 115 mL/min in nonpregnant women.


Glycosuria (Glucose in urine) during pregnancy is not abnormal. Proteinuria (Proteins in urine) more than trace amounts is abnormal

There is elevation, marked deepening and widening of the trigone of the bladder, and thickening of its
posterior, interureteric, margin. There are no mucosal changes.

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