Pregnancy month by month — what to expect (and what to do)
A friendly month-by-month guide to pregnancy: how baby is growing, how you might be feeling, and the practical things to check off each month.
8 min read
Pregnancy is usually broken into three trimesters, but it's easier to live it month by month. Here's a calm, no-panic overview — what's happening with baby, what you might be feeling, and the small practical things worth doing each month.
Month 1 (weeks 1–4)
You might not even know yet. Baby is a tiny cluster of cells implanting in the uterine wall. Many people are surprised by a positive test in this stretch. Start a prenatal vitamin with folic acid — that's the only urgent action.
Month 2 (weeks 5–8)
Baby is the size of a raspberry. Tiny limbs, a beating heart on ultrasound. Morning sickness, fatigue, and food aversions are very normal — eat small things often, drink water in sips, sleep when you can. Book your first OB or midwife appointment if you haven't.
Month 3 (weeks 9–13)
End of the first trimester. Baby is now lemon-sized with fingers and toes. The first ultrasound is around now (~12 weeks). Most people start telling close family this month. Energy often starts to return at the end.
Month 4 (weeks 14–17)
Welcome to the second trimester — for many people the easiest stretch. Bump may start to show. Time to think about prenatal classes and look into your parental-leave plan at work.
Month 5 (weeks 18–22)
The anatomy scan (~20 weeks) happens this month — many couples find out the sex if they want to. First flutters of movement around now. This is when planning your baby shower starts to make sense.
Month 6 (weeks 23–27)
Movements get strong. Glucose test for gestational diabetes is in this stretch. Start your registry if you haven't, and pick the big-ticket items (car seat, crib, stroller) so you can shop sales over the next two months.
Month 7 (weeks 28–31)
Third trimester begins. OB visits become more frequent (~every 2 weeks). Heartburn, back ache, and Braxton-Hicks contractions are common. Lock the baby shower date, finalize your birth plan, and tour the hospital or birthing centre.
Month 8 (weeks 32–35)
Baby is rapidly gaining weight. Pack the hospital bag this month. Install the car seat and have it checked. Finalize daycare or nanny arrangements if returning to work.
Month 9 (weeks 36–40)
Weekly OB visits. Baby drops lower. Nesting urges, swelling, lots of "how are you feeling" texts. Trust your body and your team. Keep the bag, the car seat, and an updated phone list within reach. Most babies arrive within two weeks of the due date.
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