
Síntomas de embarazo - cuándo actuar
Revisado por pares por Dr Colin Tidy, MRCGPEscrito por Lawrence HigginsPublicado originalmente 5 Apr 2026
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Pregnancy brings a huge range of physical and emotional changes, making it difficult to know what is expected and usual, and what needs attention. Here, we highlight the key symptoms to look out for and those that require urgent attention. We also explain which changes are usually harmless and when they might become a concern.
Read on to see when to act, when to keep an eye on it, and when to relax.
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During pregnancy, your bdy and mind go through constant changes. Many symptoms are a usual part of pregnancy, while others can be signs that you or your baby need support.
Here we break down the symptoms into clear categories so you can
quickly understand what to do, when to act, and when to seek help. We look at action to take around how you physically feel, your baby’s health, and your mental wellbeing.
Download this guide onto your phone so you can access it quickly if the need arises.
Regardless of the symptom - if something doesn’t feel right with you or your baby, trust your instincts and reach out to a healthcare professional for advice. Never ignore it – remember, mum knows best.
Your physical symptoms
Here we look at the symptoms that affect you and let you know when you need to act and what you need to do.
Physical symptoms in pregnancy requiring immediate emergency help
Some symptoms need urgent medical attention because they may indicate a serious problem.
If you have any of these symptoms, call 999, or 911 in the US, immediately for emergency services.
Dolor de estómago severo.
Heavy vaginal bleeding.
Severe chest pain or difficulty breathing.
Feeling very ill - high temperature, chills, being sick, and feeling sick.
Loss of consciousness, dizziness, and fainting.
Sudden, severe headache with blurred vision.
An accident - such as a heavy fall, or a blow to your stomach.
If you think your baby is coming now and you have a strong urge to push.
If you feel you or your baby are in danger.
Physical symptoms that need urgent medical advice
These symptoms don’t usually require emergency services, but they do need to be checked out straight away by a health care professional. Do not wait to see if things get better, get advice immediately.
If you feel any of these symptoms then get help straightaway - contact your midwife or health care team, or dial 111 in the UK.
Persistent or worsening stomach pain.
Vaginal bleeding.
Alta temperatura o escalofríos.
Painful or burning sensation when you pee.
Persistently being sick.
Swelling of your face, hands, or feet.
Persistent headaches.
Constant itching - especially in your hands or feet.
Any symptom that feels unusual, is worrying you, or keeps changing.
Usual physical changes - and when they become a concern
Many physical changes are a usual part of being pregnant. This section explains which symptoms, although uncomfortable and upsetting, are usually harmless and at what points you may need medical attention.
Regardless of the symptom - if you are worried, get help. Do not wait to see if it gets worse or brush it off. Go with your feelings.
Expected changes in pregnancy
Feeling slightly sick.
Cansancio.
Backache.
Mild swelling of ankles.
Acidez estomacal.
Estreñimiento.
Light cramping or stretching sensations.
Breast tenderness or soreness.
When the usual symptoms change
Contact your midwife or call 111 in the UK if:
Any of the expected symptoms mentioned above, suddenly worsen, or feel unusual to you.
You are being sick, so you cannot keep fluids down.
Sudden or severe swelling in your joints.
Back pain accompanied by fever, bleeding, or problems or pain when peeing.
Cramping becomes painful, regular, or is accompanied by bleeding
Persistent or severe stomach pain.
Baby health - movements, sensations, and when to act
Your baby’s movements are an important sign of their wellbeing - and yours.
You will notice your baby’s regular movements developing a pattern over time. You’ll feel periods of intense activity, more gentle movement, and the occasional quiet times. You’ll have different sensations as your baby grows.
Here we look at what is typical for your baby and when to get help.
You know your baby better than anyone - they’re with you 24/7 after all - so go with how you feel and if you're worried, reach out for help and do not wait to see how things go.
Contact your midwife or maternity unit immediately when you notice:
Noticeable reduction in baby’s movements.
No movements at a time when your baby is usually active.
A complete stop in your baby’s movements.
Any change in pattern that feels unusual or concerning.
Mental health and wellbeing symptoms
Emotional and mental health changes are just as important as physical ones. This section looks at some of the symptoms that you should expect and when you should get medical help.
Marilyn Cross Coleman’s guide to mental health in pregnancy
Pregnancy brings a huge range of emotions, mood swings, and hormone changes. It’s difficult to know what is causing what, why you feel how you feel, and what to do about it.
To try and help you weave your way through this emotional minefield, we spoke to perinatal mental health treatment specialist Marilyn Cross Coleman, LCSW, PMH-C. founder, Shameless Mama Wellness.
Cross Coleman shares helpful ways to understand what emotions are usual in pregnancy - and what might be a sign that you deserve a bit more support. If you’re reading this and recognising yourself, you’re not alone. Pregnancy is a huge emotional shift, and getting help early can make a big difference.
Signs to get help quickly
Here, Marilyn Cross Coleman, LCSW, PMH-C, Founder, Shameless Mama Wellness, Sacramento, USA, explains the symptoms which mean you should reach out for professional support straight away - and how to spot them.
Feeling persistently low, hopeless, or emotionally “numb” - these can be signs of perinatal depression, especially if they last more than a few days or feel hard to shake.
Anxiety that feels overwhelming or unmanageable - if worry takes over your day, panic attacks keep happening, or you feel constantly on edge, talk to a health professional.
Intrusive or disturbing thoughts that feel vivid or frightening - many pregnant women have intrusive thoughts, but if they become frequent or very upsetting, reach out for support to help you feel safer and calmer.
Any thoughts about harming yourself or not wanting to be here - these feelings deserve immediate attention from a professional. You don’t have to manage them alone.
Having difficulty doing everyday things - if eating, sleeping, washing, working, or basic routines feel impossible, it’s a sign you need extra support.
Flashbacks, nightmares, or a strong startle response - pregnancy can sometimes stir up past trauma. If this happens, reaching out sooner rather than later can really help.
Expected symptoms - but still need keeping an eye on
Cross Coleman talks about the symptoms that many pregnant women experience, but which can become concerning if they start taking over.
Mood swings, sensitivity, or feeling more emotional than usual - usual in pregnancy, but if the swings dominate most of your day, speak to a professional.
Worry or “what if” thinking - common, but if it turns into constant catastrophising that feels impossible to control, support will help.
Irritabilidad - totally usual, but if it becomes extreme anger or starts affecting your relationships, it’s a sign to check in with someone.
Trouble sleeping - often caused by physical discomfort, but if you’re awake because of racing thoughts, dread, or anxiety, you should speak to a healthcare professional.
‘Baby brain’ or brain fog - forgetfulness is common, but if it’s so strong that it affects your ability to concentrate or manage daily tasks, you should ask for help.
Checklist of mental health symptoms that require urgent medical attention.
If you have any of these, speak to a health care professional immediately:
Estado de ánimo bajo persistente.
Loss of interest in daily activities.
Severe anxiety or panic.
Intrusive thoughts that are distressing.
Difficulty sleeping due to emotional distress.
Feeling unable to cope.
Thoughts of harming yourself or others.
Sudden changes in behaviour, mood, or thinking.
Checklist of normal emotional changes - and when they become a concern
These emotional changes are to be expected during pregnancy.
Cambios de humor.
Feeling tearful.
Worry about the pregnancy or birth.
Feeling overwhelmed.
Changes in sleep or appetite
If those expected symptoms worsen or affect your day-to-day life, then you need to act.
Speak to your midwife or healthcare team if your:
Emotions interfere with daily life.
Worry becomes constant or uncontrollable.
Mood swings feel extreme or out of character.
Tearfulness persists most days.
Feelings become disconnected from the pregnancy or baby.
Emotional changes that feel frightening or unmanageable.
Marilyn’s message to you
Perinatal Mental Health Treatment Specialist and Founder of Shameless Mama Wellness, Marilyn Cross Coleman
Pregnancy brings huge hormonal, physical, and emotional changes. Many of the feelings you’re having are completely usual - but that doesn’t mean you have to cope with them alone.
If something feels ‘off,’ too heavy, or simply not like you, reaching out is a sign of strength, not weakness. Support is there to help you feel more like yourself again.
And remember - you can never have too much support during pregnancy.
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Preguntas frecuentes
What should I do if I notice a change in my baby's usual movement pattern, even if they haven't stopped moving completely?
If you notice any change in your baby's movement pattern that feels unusual or concerning, you should contact your midwife or maternity unit immediately. This includes a noticeable reduction in movements, no movements at a time when your baby is usually active, or any other change that worries you.
When should I be concerned about 'baby brain' or brain fog during pregnancy?
'Baby brain' or brain fog, which causes forgetfulness, is common in pregnancy. However, if it becomes so severe that it affects your ability to concentrate or manage your daily tasks, you should ask for help from a healthcare professional.
Is it normal to have intrusive thoughts during pregnancy, and when should I seek help for them?
Many pregnant women experience intrusive or disturbing thoughts. If these thoughts become frequent, very upsetting, or vivid and frightening, it's important to reach out for support. Seeking help can make you feel safer and calmer.
What's the difference between normal pregnancy mood swings and when they might be a sign of a more serious mental health issue?
Mood swings, sensitivity, and feeling more emotional than usual are normal during pregnancy. However, if these mood swings dominate most of your day, feel extreme or out of character, or interfere with your daily life, you should speak to a professional for support.
If I am pregnant and experiencing persistent worry or 'what if' thinking, when should I seek help?
Worry or 'what if' thinking is common during pregnancy. However, if this turns into constant catastrophising that feels impossible to control, support from a healthcare professional can help you manage these feelings.
Sobre el autorVer biografía completa

Lawrence Higgins
Managing editor
BSc, Post Graduate Diploma
As managing editor of Patient.info Lawrence looks after all of our features and is a member of the Guild of Health Writers.
Acerca del revisorVer biografía completa

Dr Colin Tidy, MRCGP
Médico General, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
El Dr. Colin Tidy es un médico del NHS, con sede en Oxfordshire.
Historial del artículo
La información en esta página es revisada por pares por clínicos calificados.
Artículo también disponible en Inglés, Alemán, Español, Francés, Italiano, Portugués, Hindi, Hebreo, Árabe, y Sueco.
Next review due: 5 Apr 2029
5 Apr 2026 | Publicado originalmente
Escrito por:
Lawrence HigginsRevisado por pares por
Dr Colin Tidy, MRCGP

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