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Week 17 Pregnancy (2nd Trimester): Symptoms, Baby Development (Size & Weight), and More


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Congratulations, would-be mothers! You are through month 4 of pregnancy and into month 5. Week 17 is the first week of month 5 of pregnancy in the 2nd trimester, and you may begin to feel your baby’s movements from this week or anytime from this month. 

With progressing pregnancy, your uterus and the fetus is growing hard and strong. The placenta is constantly supplying nutrients to the baby and removing its waste. Overwhelming anxiety and stress during pregnancy are part and parcel of many pregnant mothers. Learn to de-stress and enjoy the little joyous experiences of pregnancy. 

Through this article, you can understand the precious developments of your little child during the 17th week of pregnancy and the pregnancy symptoms experienced by would-be mothers with tips to take care of this week.  

Also Read: Week 16 Pregnancy Symptoms (2nd Trimester): Symptoms, Baby Development (Size & Weight), and More

Baby’s Development @ Week 17 of Pregnancy

The baby, at week 17 of 2nd trimester, weighs approximately 150 gms, and its size increases to 12 cm. A baby as big as a pomegranate usually has a stable heart rate of 140-150 beats a minute. The baby’s developments happening this week include;

Accumulating Fat Cells

For this week, your baby will start accumulating fat cells along with muscles and bone development underway. Another remarkable event this week is the commencement of coils and curve formations on the hand pads- the baby’s unique fingerprints. 

Amazing movements

The baby can move its eyes, react to noises around, and show opening and shutting movements of the mouth. In a way, the baby is showing its initial reflex actions. 

Mom-to-be @ Week 17 of Pregnancy

While the baby reacts to your actions and noises, you can feel the rolling, fluttering, and bubbling movements of the baby, especially, 

  • After a meal, 
  • When you listen to music, 
  • When you softly rub your tummy and try talking to the baby
  •  Or when you relax or sleep holding your tummy

Also Read: Leg Pain During Early Pregnancy: What does it indicate, and how can you reduce it? 

The pregnancy symptoms you may observe this week are;

  • Blockage of the nose can often lead to snoring. 
  • Tiredness and sleeping problems
  • Lower back pains
  • Round ligament pain 
  • The stretching of the stomach skin can cause itching or irritation and can lead to stretch marks.
  • Mask of Pregnancy or Chloasma- Dark or brown pigmented patches on face and neck.
  •  Constipation, indigestion, bloating, and gas
  • Unusual hunger, increasing appetite with weird food cravings and aversions
  • Dizziness or lightheadedness is due to the increased pregnancy hormones causing relaxation of blood vessels and increasing blood flow to the baby with a delayed return flow of blood. 
  • Pregnant mothers can develop insulin resistance. Or pregnant women with PCOS and insulin resistance have a higher risk of having gestational diabetes that is reversible after delivery. 
  • Increased leukorrhea or vaginal discharge
  • As the milk-producing glands develop, there is an increase in blood flow in the breasts that can cause them to grow three folds. 

Also Read: NT NB Scan During Pregnancy: What is It, When is It Done, What Will You Find Out from the Scan?

Things to consider at Week 17 of Pregnancy

Week 17, for most to-be mothers, may be an easy one with reduced pregnancy symptoms. But, since you are filling your appetite for you and the kid, you may suddenly feel hungry. It is fine, but make sure to have healthy, nutritious meals required for you and the baby. Some of the things to keep in mind this week are;

  • The thick ligaments of the uterus stretch and support the growing abdomen. This stretching can cause pain, irritation, and itching. Use subtle anti-stretch mark topical applicators to soothe the itching sensation and prevent stretch marks.
  • Avoid prolonged exposure to the sun as your skin may be prone to develop Chloasma, heat rashes, darkening of moles caused by pregnancy hormones. Cover yourself when out in the sun, apply mineral-based sunscreens, or talk to your doctor for better skincare solutions.
  • Use a humidifier, moisten your nasal openings, or sleep with your head placed at an elevated position to alleviate snoring problems. 
  • Prenatal supplements such as calcium and iron are a must. Calcium and iron-filled foods- fresh fruits, green leafy vegetables, tofu, and soy products must be a part of your prenatal diet.
  • Stress, depression, and anxiety are a result of overwhelming hormones. Try to de-stress by listening to music you like, reading books, engaging in hobbies of interest, yoga, exercises, and walking routine. 

Also Read: USG TVS Test Price in India 2022: USG TVS Test Cost in Popular Clinics in India

If you are going through depression or worry, reach out for support, talk with your friends, relatives, or doctor and overcome your distress. 

Is it safe to sleep on the back at week 17 of pregnancy?

It is safe to sleep on the back during the first trimester of pregnancy. But as your uterus gets heavier around the second trimester, it is better to shift your sleeping position to the left or right side. 


At week 17 of pregnancy, you walk into your 5th-month pregnancy term. This week you can feel some early movements of your baby. The baby’s fat cells are building up beneath the skin tissues, and the eyes are rolling underneath the closed eyelids, with the baby’s ears sensitive to noises in the outside world. For any abnormalities, consultations, or concerns, consult your doctor immediately.  


Overview | NHS

Pooja N Swamy (M.Sc Biomedical Sciences)
Pooja Holds Master's Degree in Biomedical Sciences from Vellore Institute of Technology. She believes in strong research and clear understanding over the subject. Always determined and focussed with a thirst to learn new things. Hardworking, flexible and grounded to align with the goals.


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