
33 Weeks Pregnant
Your 33rd week begins

- Development the baby is fully formed and gaining weight, with lung maturation now the primary focus.
- Emotions a mix of emotions may be overwhelming you; stay alert for signs of depression at this stage.
- How many months is 33 weeks? 33 weeks pregnant is 8 months. With week 33, you are in the third week of your 8th month of pregnancy.
IMPORTANT: Are you waiting for labor, feeling contractions, and when you think it’s time, they disappear? This is perfectly normal since at this stage you may experience practice contractions, also known as Braxton Hicks contractions.
IMPORTANT: As soon as you find out you’re pregnant, medication should only be used with medical prescription. This recommendation extends through postpartum and as long as you’re breastfeeding. Never use any medicine before consulting your obstetrician.
IMPORTANT: At this stage, your baby may still be in breech position and some people say this is a sign for a C-section, but don’t worry. If you want a vaginal birth, your baby can still turn before delivery or your doctor may attempt a medical maneuver to help with this.
- At 33 weeks, mom’s voice and heartbeat are the most pleasant sounds in the world for your baby!
- At 33 weeks pregnant, the auditory system is fully developed and your baby can clearly recognize sounds and respond with kicks.
- If you’re 33 weeks pregnant with twins, stay alert—their birth day might be very close!
- Fetal development is in full swing and mom’s weight gain accelerates.
- It’s important for mom to watch what she eats and the nutritional quality of food in order to avoid issues like gestational diabetes.

More information about 33 Weeks of Pregnancy
At 33 weeks pregnant, the mother’s voice and her heartbeat are the most comforting sounds in the world for your baby! At about 43.7 centimeters and weighing around 1.918 kg, your baby kicks and may even turn into the cephalic position, head down and ready for birth1. But some babies prefer to stay seated in mom’s belly and, in these cases, if nothing changes until birth, the doctor may recommend a manual maneuver or choose a cesarean delivery.
Baby’s Development
By week 33, the auditory system is already fully developed2 and the baby can clearly recognize the sound of mom’s, dad’s, and close family members’ voices, as well as respond with kicks and movements when stimulated. These kicks can even disrupt mom’s sleep, since they’re often most active at night.
Every bone in your baby’s body is already hard, except for the skull, which has not yet fused to make birth easier. The pieces of the head fit together like a puzzle as your baby passes through the birth canal—amazing, right? Human nature is perfect! Everything forms, develops, and improves at just the right time. If you’re at 33 weeks and pregnant with twins, stay alert: that birthday may be right around the corner!
The amount of amniotic fluid around your baby is decreasing and reaching its limit3. This is a sign that it’s almost time and the day to meet your greatest treasure is approaching! With 33 weeks completed, there’s very little time left until your little one is in your arms!
How Mom Is Feeling…
Is gaining 500g to 1kg per week too much? In some cases, it’s not! See, fetal development is in full swing and mom’s weight gain also accelerates.
I once read about moms who dieted during pregnancy to gain as little weight as possible, which is very dangerous! Every time they felt hungry, they drank water to “fool their stomach,” and the result was babies small for gestational age (SGA) because there wasn’t enough nutrition for them.
But sometimes the opposite happens, where the mom gains a lot of weight, which can also be risky. It’s important to pay attention to what you eat and food quality during pregnancy to avoid issues like gestational diabetes and hypertension.
At this stage, your baby’s nutrition may also depend on the placenta grade. At 33 weeks, the placenta is usually grade 1 or 2, but if it’s already grade 3 your doctor will closely monitor your pregnancy each week. It’s highly recommended to supplement your diet with a prenatal vitamin, as it can help prevent anemia and provide your baby with necessary vitamins.
External Factors…
Everything is getting more difficult, right? With 33 weeks, your sleep is not the same, anxiety is very high, back, leg, and rib pain are really uncomfortable, and even eating gets hard because the uterus is so big it presses on your other organs, affecting your appetite and making digestion harder.
From Dr. Malu Frade and Patricia Amorim for Famivita