If you're on the couch at 7pm feeling like you've run a marathon, having done nothing more taxing than sit through a work meeting, welcome to week eight.
One of the biggest shocks of the first trimester is how bone-deep the tiredness is. You haven't told anyone yet, your jeans still do up, and from the outside nothing looks different at all. Which somehow makes it harder, because there's nothing to point at.
Pregnancy, Birth and Baby notes that fatigue is common in the first trimester because of the changes happening in your body, and that most women have more energy after about 14 weeks.
Here's what's behind it, and why going to bed at 8pm isn't something you need to justify to anyone.
Where all your energy is actually going
It can feel absurd to be this flattened before there's anything to show for it. But a fair bit is happening that you can't see.
We're not clinicians, so rather than explain the biology as though we are, here's the short version of what the health services say, with links if you want to read properly.
Hormones. Progesterone rises sharply in early pregnancy, and it has a sedating effect. This is the one most women notice first.
You're building the placenta. It's a whole organ, built from nothing, and it takes until roughly weeks 12 to 14 to finish. That's part of why energy often lifts in the second trimester.
Blood volume is climbing. Your circulatory system is doing considerably more work than it was three months ago.
Blood pressure and blood sugar shift. Which is why the mid-afternoon drop can feel less like tiredness and more like someone's unplugged you.
If you want the detail, Pregnancy, Birth and Baby's early signs page covers what's typical in these first weeks.
Pushing through doesn't really work
Most of us are used to overriding tiredness with coffee and willpower. First trimester tiredness tends not to cooperate.
Fighting it usually just makes everything else louder, the nausea, the tears, the fog. It's worth treating it as information rather than an obstacle.
Things that actually help
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Go to bed early. If your body wants to sleep at 8pm, or 7:30pm, let it. This isn't laziness.
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Drop what can be dropped. The laundry can sit in the basket. Order dinner. The deep clean can wait a fortnight.
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Nap if you can. Even 15 minutes at lunch or after work makes a difference to the evening.
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Tell someone. You may not be ready to announce anything, but one person who knows why you're flat is worth a lot.
A gentle bedtime routine, even this early
You don't need bump support yet, and anyone selling you one at 8 weeks is getting ahead of themselves. But a few small things make the hours you do get count for more.
Keep the room properly dark and a little cooler than feels obvious. Get off your phone earlier than you'd like. And if you're overheating at night, which plenty of women do this early, loose natural fabrics help more than you'd expect. Our 3-Piece Maternity Pyjamas are cut for exactly this, breathable, with nothing digging in at the waist.
If sleep itself is the problem rather than the tiredness, we've written more on pregnancy insomnia and on setting up a bedroom that helps rather than hinders.
Worth mentioning at your next appointment
Deep tiredness is textbook for the first trimester, but it's still worth raising, because it isn't always just pregnancy.
Healthdirect notes that anaemia affects around a quarter of pregnant people in Australia, and tiredness is one of its main symptoms. Iron and thyroid levels are both simple blood tests, and your midwife or GP can sort that quickly.
Pregnancy, Birth and Baby also advises speaking to your doctor or midwife if you're tired and resting isn't helping. If you'd rather talk it through with a midwife informally first, Lauretta shares a lot of practical early pregnancy information and is worth a follow. You can also call Pregnancy, Birth and Baby on 1800 882 436 and speak to a maternal child health nurse.
The short version
If you're 8 weeks pregnant and can't stay awake past dinner, stop fighting it. Go to bed. This is one of the few pregnancy symptoms where the best response is also the easiest one.
Frequently Asked Questions
How long does first trimester fatigue last?
For most women it's heaviest somewhere between weeks 7 and 10, then starts lifting around 12 to 14 weeks. Pregnancy, Birth and Baby notes most women have more energy after 14 weeks. It often returns in the third trimester, which is worth knowing so it doesn't blindside you later.
Can I just drink more coffee?
Australian guidance is to keep caffeine to around 200mg a day, roughly one small coffee. More than that isn't recommended, and it tends to cost you sleep that night anyway. Naps are the better trade.
Can being this exhausted harm my baby?
Tiredness on its own isn't something to worry about, and it doesn't mean your baby is missing out. What is worth doing is mentioning it at your antenatal appointments, since persistent fatigue can point to something like low iron that's easy to check and easy to treat.
Is it normal to feel this tired before I'm showing?
Yes. A lot of women find the first trimester is the most tiring part of the whole pregnancy, and it happens well before there's a bump. The mismatch between how you feel and how you look is one of the odder parts of these early weeks.
The information in this article is general in nature and intended as comfort support only. It is not medical advice. Always consult your midwife, GP, or a qualified healthcare provider for guidance specific to your situation.
