Week 12 of pregnancy — 1st trimester. Baby is the size of a lime 🍋, approximately 5.4cm long and weighing 14g. 1st trimester nearly complete. Reflexes developing. Kidneys producing urine. 30% of the 40-week journey complete, 28 weeks remaining.
PREGNANCY WEEK 12 — 1st TRIMESTER
🍋
lime
baby is about the size of a lime
WEEK
12
of 40
LENGTH
5.4cm
crown to rump
WEIGHT
14 g
approximate
28 weeks remaining · 1st trimester nearly complete. Reflexes developing. Kidneys producing urine.
WEEK 12 — BABY'S DEVELOPMENT
1ST TRIMESTER · Weeks 1–12
1st trimester nearly complete. Reflexes developing. Kidneys producing urine.
HOW YOU MAY FEEL
Nausea often subsides. Risk of miscarriage drops significantly.
WEEK 12 KEY FACTS
Gestational age
Week 12
Trimester
1st (T1)
Baby length
5.4cm
Baby weight
14 g
Progress
30% complete
Weeks left
28 weeks
What happens at week 12 of pregnancy?
At week 12 of pregnancy (1st trimester):\n\nBaby development: 1st trimester nearly complete. Reflexes developing. Kidneys producing urine.\n\nBaby size: lime 🍋\nLength: approximately 5.4cm (crown to rump)\nWeight: approximately 14g\n\nPregnancy progress: 30% complete (28 weeks remaining)\n\nGestational age is counted from the first day of your last menstrual period (LMP), not from conception. Week 12 begins on day 78 and ends on day 84 from your LMP.
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Pregnancy week 12 · 1st trimester · Baby size: lime 🍋 · 5.4cm · 14 g · Sources: ACOG, WHO fetal growth data