Week 15: Baby can sense light through the uterus — they respond to bright light.

💡 Expert tip

The quad screen/AFP blood test is offered at 15–20 weeks. It screens for spina bifida and chromosomal conditions.

🌱 Baby's development this week

Science fact

Light sensitivity in the womb: at 15 weeks, if a bright light is shone at the abdomen, the baby will turn away. The fetus can detect light through the uterine wall.

🤰 Your symptoms this week

Visible bump for many women from 15 weeks (earlier for second pregnancies)
Pregnancy glow
increased blood flow to skin creates luminosity
Nose bleeds
increased blood volume and mucosal swelling; harmless
Elevate feet when sitting, stay hydrated, reduce sodium. Sudden severe swelling: call your provider.

💛 Changes in your body

💙 Mental health this week

Body image changes accelerate. Many women struggle with the

🥗 Nutrition focus

📅 Appointment / test

Quad screen / AFP blood test: offered at 15–20 weeks, screens for neural tube defects and chromosomal conditions.

✅ This week's checklist

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Schedule quad screen if you want it (15–20 week window)
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Consider a babymoon trip before the third trimester
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Start researching baby gear — waitlists for nursery furniture exist
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