Week 4: A positive test

This is often the week you find out. Your period’s late, a test reads positive, and everything quietly shifts. Deep inside, a tiny embryo — about the size of a sesame seed — has just settled into the lining of your uterus and begun forming the first delicate layers that will one day become your baby.

You might notice the earliest signs already — tender breasts, a wave of tiredness, maybe a flicker of nausea — or nothing at all yet. Both are completely normal; symptoms arrive on their own timeline, and their absence doesn’t mean anything is wrong.

A good first step is to book a GP visit to confirm the pregnancy and talk through your care options. In Australia you can usually choose between shared care (your GP plus a hospital), midwife-led care, or a private obstetrician, and Medicare covers many of your antenatal visits. There’s no need to decide everything today — just gently getting the ball rolling is plenty.

It can help to know how pregnancy weeks are actually counted, because it surprises many people: your dates are measured from the first day of your last period, not from conception. So at “4 weeks” you actually conceived only about two weeks ago — which is why everything is still so tiny and so early. Over the coming weeks the embryo’s foundations form remarkably fast: the neural tube that becomes the brain and spinal cord, the first flicker of a heartbeat, and the placenta that will nourish your baby for the months ahead.

Early pregnancy can bring worries as well as excitement, so it helps to know what’s normal. A little spotting or mild cramping around now is common as things settle, and usually doesn’t mean anything is wrong — though heavy bleeding, severe or one-sided pain, or anything that frightens you is always worth a call to your GP. And it’s completely normal for your feelings to swing between thrilled and anxious in these uncertain first weeks; be as gentle with yourself as you’d be with a friend.

It’s a good moment to loop in your partner, if you have one — even this early, sharing the news, the nerves and the growing to-do list makes it feel less like you’re carrying it all alone. Practically, two small things are worth starting now if you haven’t: a daily pregnancy supplement with folate and iodine, and booking that first GP appointment, where they’ll confirm the pregnancy, work out your due date, and set you on the path of antenatal care. There’s genuinely no need to have it all figured out today — just gently getting started is plenty.

It’s also worth keeping up your folic acid and steering clear of alcohol and smoking from here on. And however you’re feeling — thrilled, nervous, a little of both — there’s no “right” way to react to this news. Tell people, or keep it close, entirely on your own timeline.