First Trimester
Week 12
Reviewed by Dr. Humaira Latif, OB-GYN & Ultrasound Specialist
Welcome to week 12 of your pregnancy. Here’s a gentle look at what to expect at 12 weeks pregnant — baby’s size, changes in your body, common 12 weeks pregnant symptoms and a caring tip from Dr. Humaira.
Baby's size
About the size of a lime — 5.4cm.
What's happening
Baby's reflexes are developing — fingers can open and close, and toes can curl. External genitals are beginning to form.
Your body
Miscarriage risk drops significantly after this week. Uterus is rising out of the pelvis.
Common symptoms
- Less nausea
- More energy returning
- Mild skin darkening
When to call your doctor
- Bleeding
- Severe cramping
- Fever with chills
Dr. Humaira's tip
The end of the first trimester is a milestone — many women feel comfortable sharing the news around now.
Educational only — not a substitute for in-person medical advice. Always follow your own doctor's guidance.