Week 12 of Pregnancy
First trimester
Baby is
about the size of a plum
2.1 inches · 0.5 oz
Baby this week
- •Fingers and toes are fully formed and distinct
- •Fingernails and toenails are starting to grow
- •Baby can make a fist and may begin sucking their thumb
- •Bones are starting to harden from cartilage
- •Brain development is accelerating rapidly
You this week
- •Nausea may be starting to ease for many people
- •Fatigue continues but energy levels may improve slightly
- •Breast tenderness and enlargement
- •Increased appetite as morning sickness subsides
- •Possible mild headaches
- •Darkening of skin around nipples and possible line on abdomen
This week's tips
- •Schedule your first trimester screening (nuchal translucency ultrasound) if you haven't already—it's typically done between weeks 11-14
- •Start thinking about when to share your pregnancy news; 12 weeks is often considered a milestone many feel comfortable sharing
- •Increase protein and iron intake as your body is working hard; consider foods like lean meats, beans, leafy greens, and fortified cereals
- •Stay hydrated and continue taking prenatal vitamins—your baby's development depends on consistent nutrient intake
- •Gentle exercise like walking, swimming, or prenatal yoga can help with energy and prepare your body for labor
Looking ahead
You're approaching the end of your first trimester, which often marks a turning point in how you're feeling. The second trimester typically brings relief from many early pregnancy symptoms and gives you a chance to really enjoy being pregnant.
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