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3 Months Pregnancy: Babies Start to Be Able to Hear

If you intend to play music to the fetus, you can start when you are 3 months pregnant. During this time, he can hear sounds and conversations, both your voice, and the sound from outside his mother's stomach.

At 3 months pregnant, or when entering the second trimester of pregnancy, the risk of miscarriage decreases compared to the womb 2 months earlier. However, the stomach that starts to look bigger will make you need to change clothes with clothes that are more loose and comfortable, namely special clothes for pregnant women. Along with reduced morning sickness, you are more able to adjust to changes in the body when pregnant.

How is Fetus Growth?

At the beginning of 3 months of pregnancy, the fetus's weight is about 23 grams with a length of about 2.9 inches (7.4 centimeters). The following are developments that will occur in your fetus aged 13-16 weeks.

3 Months Pregnancy

13 weeks pregnant

  • The ovary or testis has developed.
  • External genital organs have also been formed, although they cannot be detected at ultrasound.
  • Your fetus may experience hiccups even if you can't feel it. This is a sign that he is practicing breathing.
  • Your fetus can suck. This is a preparation for later looking for nipples after birth.
  • If your baby is a girl, she has at least 2 million eggs in her ovary.

14 weeks pregnant

  • Your fetus weighs 43 grams with a length of approximately 3.4 inches (8.7 centimeters).
  • The fetus starts swallowing amniotic fluid little by little. This liquid then enters the stomach and is processed by the kidneys, then re-flowed as urine.
  • The fetal arm has become more proportional to its size.
  • The liver has begun to produce bile, while the spleen begins to produce red blood cells.
  • His hair starts to grow.
  • Thanks to the function of the brain's nervous system, the muscles of the baby's face can now begin to express certain expressions, such as squinting, frowning, and grinning.

15 weeks pregnant

  • This week your fetus will weigh 70 grams with a length of approximately 3.9 inches (10 centimeters).
  • Your fetus can hear sounds, such as the sound of the digestive system, as well as the sound of your heartbeat and voice.
  • Even though his eyes are closed, he can be sensitive to light from outside your stomach.
  • Your fetus's skin is so thin that the blood vessels can be seen.
  • His ears continued to grow and began to look like an adult human ear.
  • His eyes slowly began to move from the right and left of the head so that it approached above the nose.
  • Your fetus often hiccups, but won't make a sound because the throat is full of fluid.

16 weeks pregnant

  • Your fetus weighs approximately 100 grams with a body length of 4.3 inches (11 centimeters).
  • Muscles in the face begin to form, but the fetus cannot be controlled.
  • The nervous system begins to develop, so that the muscles in the limbs can move.
  • The head of the fetus has begun to erect and its eyes are in its proper position.
  • His heart pumps about 28 liters of blood.

Read also : 2 Months Pregnancy: From Embryo to Fetus

What are the changes that occur in your body?

If you are 1 month pregnant and 2 months pregnant you feel morning sickness continuously, at 3 months of pregnancy you may feel healthier. Sexual arousal that may go down early in pregnancy, now may have gone up. However, reluctance to have sex is also normal.

Some women's stomachs start to look bigger. The frequency of urination can increase because of the uterus that is compressed by the uterus. Even though you haven't been wearing pregnant clothes, but you might have replaced everyday clothes with clothes that are more loose and comfortable. While stretch marks can also begin to appear in the upper abdomen, buttocks, thighs, and breasts. Your breasts start preparing for the production of breast milk so that it feels tighter and bigger. Blood vessels also begin to appear on the skin of the breast.

What do you need to check?

In addition to checking the health and growth of the fetus with ultrasound and maternal health, here are some things you also need to check.

  • Frequent pee during pregnancy is normal. This is due to changes in the urinary tract. As the uterus grows, your increasing body weight can block the passage of urine from the bladder, this condition can cause urinary tract infections. If not treated immediately, this condition can cause kidney infection.
  • Headaches during pregnancy are also normal. Headaches are more common during pregnancy in the first and third trimesters. But this condition can be a symptom of a serious illness if the scale of the pain is unbearable and experienced continuously.
  • Check your teeth and gums to avoid infection during pregnancy.
  • Check if suddenly there is a mole that did not exist before or if there is a change in the color or shape.

What do you need to pay attention to?

There are things that can be done and need to be avoided at 13-16 weeks of gestation, namely:

Having sex

Sexual arousal that starts to return to normal after the first two months of pregnancy does not need to be dammed. Your fetus is protected by amniotic fluid in the uterus so that sexual intercourse during pregnancy is a harmless thing. But sexual intercourse should be avoided if:

  • The amniotic fluid seeps or the membranes rupture.
  • Your partner has a sexually transmitted disease.
  • Have a history of miscarriage or premature babies.
  • You experience bleeding or abnormal vaginal discharge.
  • Experiencing placenta previa or placental location that is too low.
  • There is a disorder of the cervix.

Overcome stretch marks

Exercising and applying lotion with vitamin E and alpha hydroxy acid can help relieve stretch marks. But be careful with the content of supplements or creams that can be absorbed into the blood of pregnant women and harm the fetus. If left unchecked, stretch marks can actually disappear or change color on their own after labor.

Comfortable sleeping position

Lying sideways is the most comfortable and healthy sleeping position for pregnant women. Lying on your back can cause your large blood vessels to be depressed. Use additional pillows to make the position more comfortable. Massage for pregnant women can be done by the husband to relieve the aches that are often experienced by pregnant women.

3 months of pregnancy is the age at which your fetus starts hearing. As you get older, it's a good idea to ask for help from your spouse or other relatives to do certain things that risk endangering your condition, such as drying clothes on the top floor or lifting gallons of drinking water. At the age of 4 months pregnant the stomach will become more prominent and the movement of the baby will begin to feel.

Read also : 4 Months Pregnant: Movement of Babies Starting to Feel



  1. American Pregnancy Association (2016). Pregnancy week 13 - 15.
  2. NHS Choices UK (2017). Pregnancy and Baby. You and your baby at 13 – 16 weeks pregnant.
  3. Baby Center (2015). Growth chart: Fetal length and weight, week by week.
  4. Webmd (2018). 1 to 3 Months Pregnant - 1st Trimester Baby Growth & Development
  5. Momjunction (2019). Third Month Pregnancy: Baby Development, Ultrasound And Exercises To Do.

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Is a health and wellness enthusiast. In him free time, she loves to travel and taste different types of teas.

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