EN
try amma today
Hooray, the third trimester is here!
Pregnancy

Hooray, the third trimester is here!

4 min readWeek 29
Key takeaways
4 min
  • Expect increased fatigue as your baby gains up to 2kg in 5 weeks during the third trimester growth spurt.
  • Prepare for Braxton Hicks contractions - painless, random tightening that helps your uterus practice for labor.
  • Notice decreased baby movement after 32 weeks as space becomes cramped, with fewer kicks but more stretching.
  • Plan for sleep disruption with only one-third of pregnant women getting 7+ hours of sleep in the final trimester.
  • Experience nesting instincts and colostrum production as your body naturally prepares for baby's arrival.

The third trimester brings increased fatigue, Braxton Hicks contractions, decreased baby movement after 32 weeks, sleep difficulties, and colostrum production. Your baby gains significant weight while your body prepares for labor and breastfeeding.

amma app

Track your pregnancy in the app

Personalized content for your pregnancy week

Download App

You will be meeting your baby in no time! In this review, you will find out what the pregnancy finish line looks like and the best ways to manage everything that’s going on during your last trimester. 

Fatigue is building up

At the beginning of the third trimester, the baby has a growth spurt: in five weeks they can gain up to two kilograms — twice as much as in previous months [1]. And your tummy grows right along with them! By the end of pregnancy, it can feel like you are carrying a watermelon in your stomach 24/7. Some unpleasant but natural symptoms may get worse, including the urge to urinate, swelling, back pain, and shortness of breath [2]. It can be exhausting. But the body doesn’t change overnight, and you will have time to adapt. And most importantly, any discomfort will be relatively short-lived, because your due date is fast approaching.

Training contractions appear

Don’t be alarmed if your stomach suddenly tightens noticeably and then relaxes. Unlike real contractions, Braxton-Hicks or practice contractions are mostly random and painless [3]. It’s the way the uterus prepares for childbirth, and the baby learns to respond to external stimuli. If the contractions do not go away even at rest, your stomach hurts or you notice spotting, consult your doctor immediately.

The baby becomes calmer

After the 32nd week, the baby will be pretty cramped inside the womb. At this time, or a bit later, they will more than likely turn upside down, pull their legs up to their chest, and remain in this position until birth [4]. Periodically, the baby will fidget, stretch and toss from side to side, visibly contorting your stomach. But do not expect strong kicks or somersaults, as you experienced at the end of the second or beginning of the third trimester.

Sleeping gets harder

The baby kicks, you get a cramp, and then you need to pee (again!). Studies show that in the last trimester, a third of pregnant women get less than seven hours of sleep [5]. If you feel tired during the day, try taking a mid-morning nap if possible [6]. Consider this practice for the near future, because new parents also have to get up at night and may have to catch up on sleep during the day while the baby naps.

 Breasts prepare for lactation

You may notice a yellowish liquid coming from your nipples. This substance is called colostrum, and it is the baby’s first source of nourishment outside the womb; it is packed with nutrients and immunoglobulins. Some moms have so much colostrum that they need breast pads, while others start producing it until childbirth [7].

An urge to get the house ready 

Don’t be surprised if a few weeks before giving birth, you get a surge of energy that has you cleaning the house, rearranging the furniture, and buying all sorts of cute things for the nursery. This behavior signals what is known as nesting syndrome. Some scientists believe that it is programmed by nature, and consider it an instinct that motivates a mother to prepare the space where she will care for her baby [8]. Others are convinced that it is a socially imposed pattern of behavior [9]. Either way, don’t pressure yourself into having a perfect nursery, and refrain from buying every baby item you come across! Try to remain calm, stick to your shopping list, and remember that, by and large, a newborn needs only two things: parental care and nourishment.

 Anxiety sets in

"What if suddenly something goes wrong?", "Will the baby be healthy?", "Will I be able to handle the pain of childbirth?". These and other fears are perfectly natural. Three quarters of expectant mothers worry before giving birth, and one in ten faces true phobia [10]. Don’t attempt to ignore your emotions [11]. It is better to talk to a loved one who will listen to you without judgment. Writing down any scary thoughts in a journal in a stream-of-consciousness format can also help you manage anxiety [10].  

Labor begins

It's only in the movies that childbirth starts suddenly and dramatically. In real life, the process is slow. First, the cervix will shorten and open slightly, then the mucus plug will come out — it has the appearance of a thick, jelly-like discharge from the vagina. You may experience looser and more frequent bowel movements and lower back pain, and your waters may break (in some cases the doctor will break them during labor). When the real contractions begin, you will more than likely recognize them [12]. Of course, some women deliver quickly, but that is more of an exception, especially if it is a first pregnancy. In most cases, a soon-to-be mom will have enough time to get her bearings and decide if it's time to go to the hospital.

Frequently asked questions

Normal third trimester symptoms include increased fatigue, frequent urination, swelling, back pain, shortness of breath, and Braxton Hicks contractions. Your baby will also move less but stretch more as space becomes limited.

The third trimester is an ideal time to finalize baby names as you're in the final stretch before delivery. Many parents use this time to narrow down their favorite choices and prepare for their baby's arrival.

Braxton Hicks are practice contractions that cause your stomach to tighten and relax randomly without pain. They help prepare your uterus for labor and are completely normal during the third trimester.

Third trimester sleep issues are caused by baby kicks, muscle cramps, frequent urination, and physical discomfort. One-third of pregnant women get less than 7 hours of sleep during this period.

Colostrum is a yellowish liquid that may leak from your nipples in the third trimester. It's your baby's first nutrition after birth, packed with nutrients and antibodies to boost their immune system.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

Meet our medical experts

Medically reviewed content

Reviewed by healthcare professionals · Updated August 11, 2025

Track your pregnancy on the go

Rated 4.8417,594 reviews