Track your pregnancy week-by-week

Pregnancy week by week

33 Weeks Pregnant

Length of baby: 43.5cm
Weight of baby: 1.9kg
At week 33, your baby’s bones are hardening, but the skull is not yet fused together (the skull can move and overlap) which enables the baby to pass through the birth canal easily.


You’re probably really excited to meet your baby, and we feel the same way!

But in the meantime you are probably feeling the heat from all your pregnancy symptoms as your belly gets bigger. Even sitting down could prove a challenge, let alone sleeping.

You might also find yourself bumping into chairs more frequently. Try to relax and take things slow. If you have not packed your bag for the hospital, now is a good time to do so in the event your baby arrives early.

33 weeks pregnant is how many months? 33 weeks pregnant is eight months and one week pregnant. You got seven weeks till your due date.



How big is baby at 33 weeks? Your baby is now the size of a pineapple, and measures about 43.5cm.

The current weight of your baby is about 1.9kilograms.



This is the weight gain that you must achieve this week.

Underweight(BMI <18.5)  0.44kg to 0.58kg
Normal weight(BMI 18.5 to 24.9)0.39kg to 0.50kg
Overweight(BMI 25 to 29.9) 0.23kg to 0.33kg
Obese(BMI ≥ 30) 0.16kg to 0.25kg



The symptoms you are experiencing now will centre around your ever increasing belly size.

Being 33 weeks pregnant, here are some signs and symptom that your body might be experiencing:

  • Lack of breath. As your baby increases in size, your uterus presses against your lungs and you will feel shortness of breath, especially if you exert yourself.
  • Acid reflux. Remember prevention is key, try to avoid foods and liquids that will trigger your acid reflux.
  • Brittle nails. Pregnancy hormones and a change in your blood pressure can cause your nails to become brittle which crack and peel easily.
  • Headaches. Fluctuations in your hormones can cause you to develop headaches, in addition to the stress of becoming a new mum.
  • Trouble sleeping. Because you are experiencing so many symptoms – big belly, leg cramps, acid reflux, needing to pee all the time – you may have trouble sleeping. Ask your partner to massage you so you can feel more relaxed.
  • Braxton Hicks contractions. You may experience contractions in the abdomen that come and go. Some women say that this feels like mild menstrual cramps.


With your belly getting bigger, you might find yourself waddling instead of walking normally. You might find that sleeping, sitting and walking will prove to be an uncomfortable experience. On top of that, you might find yourself bumping into things more frequently. 



By this week, you would have gained somewhere between 10kg to 13kg. Ensure you are not having a sudden increase or decrease in weight.

Many women still feel sexy at this stage, and sex during pregnancy is okay (and even encouraged), in fact right up to the point before your water breaks or before labour starts.

Because your bump is now pretty sizeable, you may occasionally bump into chairs or tables. Remember to take things slow.



Your baby is losing his or her wrinkled “alien” look and is looking more like the baby you will see when he or she pops out.

The bones are hardening, but the skull is not yet fused together (the skull can move and overlap) which enables the baby to pass through the birth canal easily. In fact, it will be at the early childhood stage for the skull to fuse together.

Your baby is also practising sucking and swallowing to prepare for the life outside the womb. The eyes are now also opened when the baby is awake, though it is sleeping a good portion of the time.

With your uterus wall thinning and more light filtering through, your baby can even tell the difference between night and day.

The little one is still receiving your antibodies to help his or her immune system. He or she is still developing his or her own immune system, so receiving your antibodies is crucial for the little one to fight germs once he or she is born.



Reminders for the week:

  • Learn more about breast feeding
  • Prep the arrangements for confinement
  • Prepare your bag for the hospital
  • If you did not purchase prenatal insurance, you might want to consider child insurance at this stage