What Does a Woman Look Like at Three to Four Months Pregnant?


During the first trimester of pregnancy, a woman’s body undergoes numerous changes as it adapts to support the growing fetus. By the end of the third month, or around twelve weeks, these changes become more visible, and the woman begins to show signs of pregnancy. In this article, we will explore in detail how a woman looks at three to four months pregnant, including physical changes, weight gain, and fetal development.

1. Physical Changes

At three to four months pregnant, a woman’s body experiences various physical changes. These changes are primarily due to hormonal fluctuations and the growth of the uterus to accommodate the developing fetus.

1.1 Breasts

One of the earliest signs of pregnancy is breast tenderness and enlargement. As the mammary glands prepare for lactation, the breasts may become fuller, more sensitive, and even slightly painful. The areolas may darken, and small bumps called Montgomery’s tubercles may appear.

1.2 Waistline

By the end of the first trimester, the waistline starts to thicken as the uterus expands. However, at three to four months pregnant, the waistline may not be noticeably different, especially for first-time mothers. The abdomen may feel slightly firmer to the touch due to the growing uterus.

1.3 Skin

Pregnancy hormones can affect the skin, leading to various changes. Some women may experience an increase in oil production, resulting in acne or oily skin. Other common skin changes include darkening of the skin in certain areas, such as the nipples and the linea nigra (a dark line that runs vertically down the abdomen).

1.4 Weight Gain

Weight gain is a natural part of pregnancy, and by three to four months, it is common for women to gain a few pounds. However, the amount of weight gained can vary depending on factors such as pre-pregnancy weight and individual metabolism. On average, women are expected to gain 1-2 pounds per month during the first trimester.

2. Weight Gain During Pregnancy

Weight gain is a crucial aspect of a healthy pregnancy, and it is important for both the mother and the baby’s well-being. The recommended weight gain during pregnancy depends on the woman’s pre-pregnancy body mass index (BMI).

2.1 BMI and Weight Gain Guidelines

The BMI is a measure of body fat based on height and weight. It is used to categorize individuals into different weight ranges. Here are the general weight gain guidelines based on BMI:

BMI Category Recommended Weight Gain
Underweight (BMI < 18.5) 28-40 pounds
Normal Weight (BMI 18.5-24.9) 25-35 pounds
Overweight (BMI 25-29.9) 15-25 pounds
Obese (BMI ≥ 30) 11-20 pounds

It is important to note that these guidelines are general recommendations, and individual variations can occur. It is always best to consult with a healthcare provider for personalized advice.

3 Months Pregnant: End of the first trimester

3 Weeks Pregnant – What to Expect

3. Fetal Development

While a woman’s body is changing during pregnancy, the fetus is also undergoing rapid development. By three to four months, the baby’s major organs and structures have formed, and it starts to resemble a tiny human being.

3.1 Size and Appearance

At three months, the fetus is approximately two to three inches long and weighs around half an ounce. By the end of the fourth month, it grows to about six inches in length and weighs around four ounces. During this time, the baby’s head becomes more rounded, and the facial features become more defined.

3.2 Movements

Around the fourth month, the mother may start feeling the baby’s movements, known as quickening. These movements may feel like flutters or gentle taps. However, it is important to note that the exact timing of quickening can vary for each woman.

3.3 Gender Determination

By the end of the fourth month, the baby’s external genitalia are developed enough to determine its gender through ultrasound. Many parents eagerly look forward to this milestone as they prepare for their baby’s arrival.


1. Is it normal not to show at three to four months pregnant?

Yes, it is normal for some women not to show a significant baby bump at three to four months pregnant, especially if it is their first pregnancy. The size and visibility of the bump can vary depending on factors such as body type, muscle tone, and the position of the uterus.

2. Can I dye my hair during pregnancy?

Research suggests that it is generally safe to dye your hair during pregnancy, especially after the first trimester. However, it is recommended to avoid harsh chemicals and opt for natural or ammonia-free hair dyes. It is always best to consult with your healthcare provider before making any decisions.

3. Why is weight gain important during pregnancy?

Weight gain is essential during pregnancy as it supports the growth and development of the baby. It provides the necessary nutrients and energy for both the mother and the fetus. Adequate weight gain also helps prepare the mother’s body for breastfeeding and postpartum recovery.

4. Can I continue exercising during the second trimester?

Yes, most women can continue exercising during the second trimester, but it is important to consult with a healthcare provider before starting or continuing any exercise routine. Low-impact activities such as walking, swimming, and prenatal yoga are generally safe and beneficial during pregnancy.

5. Are stretch marks inevitable during pregnancy?

Stretch marks are common during pregnancy, but not all women develop them. The likelihood of developing stretch marks can be influenced by factors such as genetics, skin type, and the amount of weight gained. Maintaining good skin hydration and using moisturizers may help reduce the appearance of stretch marks.

6. Can I sleep on my back during the second trimester?

Sleeping on your back during the second trimester is generally safe. However, as the pregnancy progresses, it is recommended to sleep on your side, preferably the left side. This position improves blood flow to the uterus and helps prevent issues such as backaches, hemorrhoids, and reduced circulation.

7. When should I start wearing maternity clothes?

There is no specific timeframe for when to start wearing maternity clothes as every woman’s body and pregnancy journey is unique. Some women may need to switch to maternity clothing earlier due to bloating and changes in body shape, while others may continue wearing their regular clothes for a longer time.

8. Can stress harm the baby during the second trimester?

Excessive stress during pregnancy can potentially have negative effects on both the mother and the baby. It is important to find healthy coping mechanisms and seek support if needed. Engaging in relaxation techniques, practicing self-care, and maintaining a supportive network can help reduce stress levels.

9. Is it safe to travel during the second trimester?

The second trimester is generally considered the safest time to travel during pregnancy. Most pregnancy discomforts have subsided, and the risk of miscarriage is significantly reduced. However, it is essential to consult with a healthcare provider before making any travel plans, especially for long-distance or international trips.

10. When should I start attending prenatal classes?

Prenatal classes are typically recommended for expectant parents to gain knowledge and prepare for childbirth and parenting. It is advisable to start attending prenatal classes in the second trimester, around 20 weeks or so. However, the timing may vary depending on personal preference and availability of classes.


At three to four months pregnant, a woman’s body undergoes various physical changes as it adapts to support the growing fetus. Although the baby bump may not be prominently visible during this time, the breasts may enlarge, the waistline may thicken, and the skin may undergo hormonal changes. Weight gain is a natural part of pregnancy, and the recommended amount varies based on the woman’s BMI. Additionally, the fetus experiences significant development, with major organs formed and movements becoming noticeable. It is vital to consult with a healthcare provider for personalized guidance throughout the pregnancy journey.

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