33 Weeks Pregnant

You’re in the third trimester and your baby is about the size of a muskmelon. Here’s how your baby is developing, what you might feel, and the check-ups to plan this week.

Reviewed against ACOG & WHO guidance Updated 25 September 2026
Baby is about the size of
A muskmelon (kharbooja)
Length ~43.7 cmWeight ~1.9 kgTrimester 3Month 8

Sizes are averages; from week 20 length is measured head to heel. Not sure which week you’re in? Calculate it.

Your baby at 33 weeks

Bones are hardening, except the skull – its plates stay soft and flexible so the head can mould during birth. Antibodies are passing from you to your baby through the placenta.

Your body at 33 weeks

Sleep can be difficult, and you may feel pressure low in the pelvis.

Common symptoms this week

  • Insomnia
  • Pelvic pressure
  • Swelling

Tips & to-do list

  • Pack your hospital bag: MCP card, ID, scan & test reports, clothes, sanitary pads, baby clothes and a swaddle.
  • Keep important phone numbers handy.
  • Rest with your feet up.

Check-ups and tests around this week

  • Tdap/Td vaccination as advised (27–36 weeks)
  • Antenatal visits about every 2 weeks

Week 33 at a glance

At 33 weeks
TrimesterThird trimester
Pregnancy monthMonth 8 of 9
Weeks to due date7 weeks
Days pregnant231–237 days
Progress82% of 40 weeks

When to call your doctor

Contact your doctor or go to hospital straight away if you notice:

  • Reduced or changed baby movements
  • Waters breaking or any bleeding
  • Severe headache, vision changes, pain under the ribs
  • Regular painful contractions before 37 weeks
  • Severe itching of palms and soles

Questions about 33 weeks pregnant

How many months is 33 weeks pregnant?

33 weeks pregnant falls in month 8 of pregnancy, in the third trimester. For medical purposes, weeks and days are more precise than months.

How big is my baby at 33 weeks?

At 33 weeks your baby is about the size of a muskmelon (kharbooja) – roughly ~43.7 cm long and weighing about ~1.9 kg.

Is it normal to have no symptoms at 33 weeks?

Yes. Every pregnancy is different, and symptoms come and go. Feeling well is not a sign that something is wrong. If you have concerns, or notice any warning signs listed on this page, contact your doctor.

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Medical disclaimer: The results and information on this page are estimates for general education only. They are not a diagnosis and do not replace advice from your gynaecologist, obstetrician or midwife. If you have pain, bleeding, reduced baby movements or feel unwell, contact your doctor or call 108 immediately. Read the full disclaimer.

Written by the Pregnancy Calculator editorial team. Based on published obstetric guidance (ACOG, WHO, MoHFW India, FOGSI). Last updated . How we create content.