Overview
Baby can sense light and is practising tiny movements. Week 15 often feels quieter on the outside, but the baby is becoming more coordinated and responsive inside.
Around week 15 · Nausea & digestion
Morning sickness often starts improving around this time for many people.
Morning sickness is very common in early pregnancy and usually harmless. Learn what's normal, what helps, and the warning signs that need a doctor.
Second Trimester · Weeks 14–27
Week 15 Pregnancy
Baby can sense light and is practising tiny movements.
About the size of a orange3 min read10 sections
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Baby Development
Bones continue hardening, ears are moving into place, and the baby may begin sensing light through closed eyelids. Muscles and joints are practising movement patterns that will later become stronger kicks.
Baby Size
A playful size comparison for this week is orange. That orange-sized baby is stretching out more, so the body looks longer and less compact than before.
Mother's Body Changes
A small bump may become more obvious now, and your centre of gravity is starting to shift even if only subtly. Skin changes, fuller veins, and occasional nosebleeds can show up as blood volume rises.
Common Symptoms
Round-ligament pulls, heartburn, constipation, stuffy nose, headaches, and mild backache can all appear in week 15. Many people feel more energetic overall but still notice random physical annoyances.
Nutrition Tips
Support growing blood volume with iron-rich foods such as spinach, lentils, beans, eggs, meat if you eat it, and vitamin C alongside. Fibre and fluids matter too, because constipation can sneak in even when appetite is better.
Exercise & Movement
Walking, prenatal yoga, and strength work with good form can support posture as your body begins to shift. Avoid long sessions flat on your back if they leave you lightheaded or uncomfortable.
Emotional Wellbeing
You may feel a little more like yourself again, which can be a relief after the first trimester. At the same time, new visibility can make pregnancy feel more public than before.
Partner Support
Partners can help with everyday comfort now, from reminding you to eat on time to encouraging movement that feels good. Thoughtful, steady support often matters more than big gestures.
Warning Signs
Urgent warning signs this week include heavy bleeding, severe abdominal pain, fever, fainting, leaking fluid, or a severe headache with vision changes. Call for severe abdominal pain, heavy bleeding, fever, persistent dizziness, or symptoms of a urinary infection such as burning or lower abdominal pain.
Frequently Asked Questions
Hearing is still developing, so full hearing comes later, but the ear structures are progressing quickly now. Talking to the bump is still a lovely habit if it feels meaningful to you.
ParentVibes Tip
Start thinking about comfortable, looser clothing. If clothes are starting to feel awkward, comfort is reason enough to size up without waiting for a dramatic bump.
Continue your journey
Explore the full second trimester guide.
ParentVibes offers general information, not medical advice. Always follow your doctor or midwife.