Third Trimester Of Pregnancy: Symptoms, Baby Growth and Tests

The Third Trimester is from 28th week to 40th week of pregnancy. Your belly is full blown moon now and you already fell in love with your baby movements. You will have lots of question about pregnancy in your mind now what next.

Third Trimester Of Pregnancy: Symptoms, Baby Growth, and Tests

Read on to know more about your body change and lots more 🙂 In this part of A to Z Guide to pregnancy, we will discuss the third trimester of pregnancy: symptoms baby growth and tests

The Subjective symptoms during the third trimester ( 29-40 weeks or 7-9 month ) of pregnancy

Amenorrhea that is the absence of menses still persists

Backache: You have put on some extra kilos and this may lead to severe lower backache. You’ll find it difficult to be seated for a long duration.

Progressive Enlargement of the abdomen: Due to an increase in the size of the fetus, your baby bump is now enlarged to the full moon size.

This may produce some mechanical discomfort to the patient such as palpitation or dyspnoea.

Lightening: A sense of relief of the pressure symptoms at 38th week is obtained especially in primigravidae that is a woman who is going to be a mom for the very first time.

The frequency of micturition reappears

Fetal movements are more pronounced

Fatigue: After Second trimester your energy level drop due to an increase in your body weight, nutritional requirement. And you feel fatigue with even small tasks.

Swelling: Some of you might see tightness in around your face, neck, fingers especially in toes. If this swelling comes all of a sudden then it may be the sign of preeclampsia, talk to your doctor immediately.

Discharge: You may find some watery or curdy discharge, especially before your due date as one of the signs of delivery. If it occurs in seventh or eight months talk to your physician.

Weight Gain: You may gain around 450-grams weight every week. This is absolutely normal depending you’re overweight or under-weight.

Baby’s Growth and Development in The Third Trimester Of Pregnancy

In this trimester your baby’s physical parts like bones, organs like brain, the skin will grow faster than ever.

Your baby digestive system started working and all the senses are activated by the end of this trimester

By the end of this trimester, that is 9 month, your baby will grow about 19-22 inches and weighs about 2.5kg – 4kg Normally.

Tests During The Third Trimester Of Pregnancy

Complete Blood Test – Especially Haemoglobin to check the level of Iron in your blood.

Urine test – For any UTI, Protein, sugar level

Ultrasound – the third-trimester Ultrasound will monitor your baby’s growth -check your baby body size, shape, weight, fetal heart sound, fetal movements, and check for any kind of complications. It also tells the due date of Delivery.

Risk: Ultrasound is considered safe for both you and your baby.

Interference of the Third Trimester of Pregnancy

The Third Trimester of Pregnancy is the will make you quite lethargic due to increase body weight. You feel tired early.

Maybe you’ll prone to problems like Dyspnea (Breathlessness). My advice to you is to don’t take the stress, be strong, have confidence in yourself and remember that patience result is always fruitful.

Trust me The smile, touch and warmth of your baby let you forget all the pains.


  • D.C Dutta textbook of obstetrics.

Disclosure: The views expressed in the blog content are independent and unbiased views of solely the blogger.

DISCLAIMER: The content in this post is purely meant for educational purpose only and not to be substituted for professional medical advice. One should consult the expert for any related information.

Dr Bushra

Gynaecologist by profession~~Food ,Health,lifestyle,Freelance Blogger~~social media influencer~~writer at heart~~Email for collaboration

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