Pregnancy Week by Week
Your baby grows from a poppy seed to a pumpkin in forty weeks. This timeline tracks every milestone — what your baby looks like, what is happening inside your body, and what to expect at each stage of your pregnancy.
Week by week
First Trimester (Weeks 1–12)
Second Trimester (Weeks 13–26)
Week 16 of Pregnancy: An Avocado, and the Week We Started Talking to the Bump
Week 16 is when the baby's hearing is still developing, not yet fully formed — though plenty of parents start talking and playing music long before that.
Week 15 of Pregnancy: An Apple, and the Week Your Wardrobe Starts to Change
Week 15 is often when regular clothes stop fitting comfortably, round ligament pain can start, and a practical wardrobe change becomes unavoidable now.
Week 14 of Pregnancy: A Peach, and the Week Energy Often Comes Back
Week 14 is when energy and appetite often rebound after a demanding first trimester — a good week to rebuild healthy habits rather than just survive.
Week 13 of Pregnancy: A Lemon, and the Start of the Second Trimester
Week 13 opens the second trimester, when many first-trimester symptoms start easing, a small bump may show, and appetite can shift in unexpected ways.
Week 12 of Pregnancy: A Lime, and the Week the First Trimester Ends
Week 12 marks the end of the first trimester, when miscarriage risk drops significantly — often the first week that genuinely feels like a milestone.
Week 11 of Pregnancy: A Fig, and the Week Bones Start to Harden
Week 11 is a genuinely quiet week for most women, even as fingers separate, nails form, and the skeleton begins its slow shift from cartilage to bone.
Week 10 of Pregnancy: A Strawberry, and the Week 'Embryo' Becomes 'Foetus'
Week 10 is when your baby is medically reclassified from embryo to foetus — a quiet milestone, usually marked by nothing more dramatic than a routine checkup.
Week 9 of Pregnancy: A Grape, and Often the Hardest Week for Energy
Week 9 is when facial features and tiny hands and feet start forming, and for many women, this is when fatigue and nausea feel at their most demanding.
Week 8 of Pregnancy: A Raspberry, and Often the Week of Your First Scan
Week 8 is when many women have their first ultrasound — seeing or hearing your baby for the first time, and finding out it's more emotional than clinical.
Week 7 of Pregnancy: A Blueberry, and the Week the Brain Grows Fastest
Week 7 is when your baby's brain is forming at roughly 100 new cells a minute — and often the week you start adjusting work and exercise to match your energy.
Week 6 of Pregnancy: A Pea, and the Week Morning Sickness Classically Begins
Week 6 is when facial features and limb buds start forming — and classically, when morning sickness begins, though it doesn't arrive on schedule for everyone.
Week 5 of Pregnancy: A Sesame Seed, and the Week Your Baby's Heart Starts Beating
Week 5 is when your baby's heart begins beating for the first time, even though for many women, the week itself feels quiet, ordinary, and uneventful.