Your baby is the size of a Plum. Discover exactly what is happening to your body and your baby this week.
Baby Development: The kidneys are functioning, producing urine that contributes to amniotic fluid. Reflexes are developing rapidly, and baby can open and close fingers.
Pregnancy Symptoms: Good news! The placenta is taking over hormone production, so morning sickness and extreme fatigue should start to ease up.
Weekly Tip: 12-week scan week! This is a major milestone where you get to see your baby's profile clearly.
At 12 weeks pregnant, your baby is approximately the size of a Plum.
Week 12 in detail
Kidneys make urine that becomes part of the amniotic fluid. Reflexes are in. Fingers can curl. For many clinics this is the nuchal / dating scan week: a profile, a heartbeat, and a better due date than LMP alone.
Nausea and crushing fatigue often ease as the placenta takes over progesterone production — not on a schedule, and not for everyone. Energy returning is a gift, not a requirement to “catch up” on work you skipped.
This visit is a milestone. Miscarriage risk is lower after a normal scan, not zero. Use the checklist above for photos and a budget start. Write three questions on paper so the sonographer’s speed does not wipe them.
A general guide, not medical advice. Scan timing and symptoms vary — ask your clinician.
This chart visualizes the average length of the baby from week 1 to 40. Values are based on standard clinical averages.