The short explanation
Yes, feeling very sleepy in the first three months of pregnancy is very common. Rising levels of the hormone progesterone have a sedating effect, and the body is working hard to support the early pregnancy. Nausea, frequent urination at night and emotional changes can also disturb night sleep, adding to daytime tiredness. For most women this improves in the second trimester. Meanwhile, it helps to go to bed earlier, take short rests when possible, eat small regular meals, stay hydrated and do some light activity such as walking. Talk to your manager if you need flexibility. Tiredness that is extreme, or comes with breathlessness, a racing heart or dizziness, should be checked, because anaemia and thyroid problems are common in pregnancy.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Your doctor will usually check haemoglobin and sometimes thyroid in early pregnancy.
- If you are vomiting so much that you cannot keep fluids down, you need care sooner.
- Avoid driving or riding if you feel very drowsy.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you whether your tiredness has another cause. Your doctor can check your blood tests.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Is my tiredness normal for this stage?
- Should my haemoglobin and thyroid be checked?
- What can I do to manage tiredness at work?
- When should I worry about tiredness?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to hospital if you have heavy bleeding, severe one-sided abdominal pain or fainting.
Get help the same day
- Get care the same day if you cannot keep fluids down or feel very dizzy.
Raise it at a routine appointment
- Mention tiredness at your next antenatal visit.
Sources
The evidence this explanation is built on.
- Sleep disorders MedlinePlus (NIH)
- Insomnia NHS
- Iron deficiency anaemia NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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