Third trimester
Pregnancy Week 33
Your baby is about the size of a pineapple.
Size
pineapple
Length
43 cm
Weight
1920 g
Baby in week 33
Immune system developing. Skull bones still soft for delivery.
What you may notice this week
Difficulty sleeping. Frequent bathroom trips return.
Tips for week 33
- Sleep on left side for circulation
- Limit fluids before bed
- Take warm baths
Tools that pair with this week
Due Date Calculator
Estimate your delivery date by last period or conception date. Naegele’s rule plus cycle adjustments.
Week Tracker
See exactly how many weeks and days pregnant you are, plus your trimester and key milestones.
Contraction Timer
Tap once to start, once to stop. Tracks duration, frequency, and pattern over time.
Ovulation Calculator
Find your fertile window based on your cycle length. Plan or avoid with confidence.
Baby Name Generator
Filter by origin, style, length, and starting letter. Boys, girls, and unisex.
Growth Percentile
Plot your baby’s weight, length, and head circumference against WHO percentile curves.