What is a nuchal translucency scan?

The NT scan is an ultrasound performed between weeks 11-14 that measures the fluid at the back of the baby's neck. Combined with blood tests, it assesses the risk of chromosomal abnormalities like Down syndrome.

Does the risk of miscarriage decrease at 12 weeks?

Yes, the miscarriage rate drops significantly after 12 weeks, from about 10-20% in early pregnancy to about 1-2% after the first trimester. This is why many people choose to share their pregnancy news after this milestone.

First Trimester 12 weeks pregnant

Pregnancy Week 12 - End of First Trimester & Reflexes Develop

Congratulations on reaching 12 weeks! This marks the end of your first trimester. Your baby has developed reflexes and can open and close fingers, curl toes, and make sucking movements. The risk of miscarriage drops significantly after this milestone.

Lime

Baby Size

5.4 cm

Length

14 grams

Weight

Week 12

of 42

Baby Development This Week

Your baby's reflexes are developing rapidly and now include opening and closing fingers, curling toes, and puckering lips. The intestines, which had been growing outside the body in the umbilical cord, are now moving into the abdomen. The kidneys are producing urine, which your baby releases into the amniotic fluid. Vocal cords are forming, and the brain is developing rapidly. Baby's face is looking more human with eyes that have moved from the sides to the front of the head.

Changes in Your Body

The end of the first trimester often brings relief from nausea and fatigue for many women. Your uterus has risen above the pubic bone, and you may have a noticeable baby bump. You might hear your baby's heartbeat for the first time using a Doppler at your prenatal visit. Increased blood volume may cause your face to look flushed. You might still experience some food aversions, but your appetite may be returning.

Common Symptoms at Week 12

Decreasing nauseaMore energyVisible bumpOccasional headachesIncreased appetiteDizziness

Tips for Week 12

Celebrate reaching this important milestone!
Schedule your nuchal translucency (NT) scan if you have not already — it is typically done between weeks 11-14.
Start a pregnancy exercise routine if you are feeling more energetic.
Begin planning for your second trimester — this is often called the "honeymoon period" of pregnancy.

When to Call Your Doctor

If you experience any bleeding, severe pain, or signs of miscarriage, contact your healthcare provider. Also report persistent headaches, visual changes, or severe dizziness.

Frequently Asked Questions — Week 12

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