Pregnancy week 12
This week your baby is about the size of plum — around 5.4 cm and 14 g.
Your baby this week
Your baby is now about the size of a plum, and this is a special milestone: most of the essential organs are formed and starting to work. Reflexes are developing — your baby may wiggle their fingers and curl their toes — and the kidneys are beginning to make urine. The facial features are clearer now, with the eyes moving closer to their final position. Your baby is nearing the end of the most delicate stage of development.
Your body this week
As the first trimester ends, your energy may slowly start to return and nausea often eases for many mothers. You might notice a small bump beginning to show low on your belly as the uterus rises. It's also natural to feel a mix of excitement and worry as you reach this important milestone.
Tips for this week
This is a lovely time to celebrate reaching the end of the first trimester, and perhaps to share the news with loved ones if you feel ready. Keep up with your regular prenatal appointments — they're key to your peace of mind. And give yourself moments of rest and gratitude for all your body is doing.
Frequently asked questions
How big is the baby at week 12?+
At week 12, your baby is about the size of plum — roughly 5.4 cm and 14 g, though every baby grows at its own pace.
Which trimester is week 12?+
Week 12 falls in the First trimester.
How many weeks are left at week 12?+
At week 12, you have about 28 weeks to go until the typical 40-week due date.
Is week 12 normal?+
Every pregnancy is different. If you feel well and your check-ups are on track, week 12 is usually a normal part of the journey — but always reach out to your doctor or midwife with any concern.
This guide is for general information and reassurance — it isn't medical advice. Always follow your doctor or midwife for your own pregnancy.