23 Weeks Pregnant
You’re 23 weeks pregnant — in the second trimester, and 17 weeks to go until your due date. Your baby is about the size of a grapefruit this week.
How big is your baby at 23 weeks?
Size of a
grapefruit
Length
~28.9 cm
Weight
~501 g
Last week your baby was about the size of a papaya; this week it's grown to roughly a grapefruit.
Sizes are averages from standard fetal-growth references. Every baby grows at its own pace — your provider tracks yours at scans.
Baby development at week 23
The lungs are developing the blood vessels they'll need to breathe air, though they are far from ready. The skin is still wrinkled and reddish as the fetus has not yet filled it out with fat. Hearing is sharp enough now that loud noises may become familiar before birth. About the size of a grapefruit.
Your body at 23 weeks
Common symptoms many people notice around week 23 include:
- Visible belly movements from the outside
- Swollen ankles and feet
- Possible darkening of the skin
- Bleeding gums
Symptoms vary enormously from person to person and pregnancy to pregnancy. Not having a symptom on this list is just as normal as having it.
Tips for week 23
- Keep up gentle activity to support circulation
- Soft toothbrush and gentle flossing help sensitive gums
- Watch for sudden severe swelling and report it to your provider
What trimester is 23 weeks?
Week 23 falls in the second trimester. As a quick map: the first trimester runs weeks 1–13, the second covers weeks 14–27, and the third is week 28 through birth (a due date is set at 40 weeks). Want your own dates? Our Pregnancy Due Date Calculator shows your due date and exactly how far along you are today.
The second trimester (weeks 14–27) is the stretch many people find most comfortable: early nausea usually fades, energy returns, and the bump becomes visible. The big checkpoint is the mid-pregnancy anatomy scan around week 20, and you'll likely feel the first movements during these weeks.
Frequently asked questions
- How many months is 23 weeks pregnant?
- 23 weeks pregnant is about 6 months. Pregnancy months don't divide evenly into 4-week blocks, so week-to-month conversions are approximate — most providers track pregnancy by week, not month.
- How big is the baby at 23 weeks?
- At 23 weeks, the baby is about the size of a grapefruit, roughly 28.9 cm and around 501 g. These are averages — healthy babies vary, and your provider tracks your baby's own growth curve at scans.
- What trimester is 23 weeks?
- Week 23 is in the second trimester. The first trimester is weeks 1–13, the second is weeks 14–27, and the third is weeks 28 to birth (around week 40).