
Common Pregnancy Symptoms
The strange, wonderful and occasionally downright inconvenient things your body might get up to during pregnancy.

Pregnancy can feel a bit like your body has quietly installed a completely new operating system without giving you the user manual. One minute you're starving. The next, the smell of toast is enough to make you question your entire existence. Your boobs hurt, your bladder has become your new best friend and somehow you've developed heartburn from looking at a tomato.
Many pregnancy symptoms are completely normal and are caused by the enormous hormonal and physical changes happening in your body. But "common" doesn't mean you have to put up with everything without support. This guide covers some of the most common pregnancy symptoms, what causes them and some things that may help.
First Trimester Symptoms
Early pregnancy can be particularly symptom-heavy because hormone levels are changing rapidly.
You may experience:
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tiredness
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nausea or vomiting
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sore or tender breasts
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needing to wee more often
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constipation
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bloating
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headaches
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increased vaginal discharge
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changes in taste and smell
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food cravings or aversions
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mood changes
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mild cramping
You may experience several of these. You may experience none of them. And despite what pregnancy forums might have you believe, the presence or absence of symptoms isn't a reliable way of judging how your pregnancy is progressing.
Nausea and Vomiting
"Nauseous" doesn't quite cover it for some people. Pregnancy sickness is extremely common and can happen at any time of day, despite its rather misleading nickname of morning sickness. It usually starts early in pregnancy and often improves by around 16–20 weeks, although some people experience it for longer.
Things that might help
You could try:
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eating little and often
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keeping plain foods such as crackers or toast nearby
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having something to eat before you get out of bed
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drinking fluids little and often
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avoiding foods or smells that trigger your nausea
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eating whatever you can tolerate rather than worrying about eating perfectly
And importantly, you don't have to suffer in silence. There are medications that can be used to treat pregnancy sickness, so speak to your midwife or GP if nausea or vomiting is making everyday life difficult.
When is it more than morning sickness?
Some people develop hyperemesis gravidarum (HG), a severe form of pregnancy sickness. Signs can include being unable to keep food or fluids down, dehydration, significant weight loss and being unable to carry out normal daily activities. If you think you may have hyperemesis, speak to your maternity team or GP. Severe pregnancy sickness deserves proper treatment and support.
Tiredness
Pregnancy can be exhausting. Particularly in the first trimester, when your body is doing a huge amount of work behind the scenes.
Hormonal changes, increased blood production and the energy demands of pregnancy can all contribute to feeling tired. Later in pregnancy, the physical effort of carrying a growing baby, disrupted sleep and simply finding a comfortable position can take their toll too.
What can help?
Rest when you can. Eat regularly. Stay hydrated. Keep moving gently if you're able to. And don't underestimate the value of doing less. Pregnancy isn't the time to win an award for Most Productive Human. If you're experiencing extreme or persistent tiredness, particularly alongside breathlessness, dizziness, palpitations or other symptoms, mention it to your midwife or GP. Conditions such as anaemia can contribute to fatigue during pregnancy.
Breast Tenderness
Tender, swollen or sensitive breasts are common in early pregnancy. Your breasts begin preparing for feeding from very early on, and hormonal changes can make them feel sore or uncomfortable.
You may notice:
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increased breast size
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tenderness
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tingling
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more prominent veins
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darker nipples
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changes to the areola
A supportive, comfortable bra can make a surprisingly large difference. And yes, your nipples may suddenly become much more interested in personal space.
Needing to Wee More Often
Pregnancy can make your bladder feel like it has a personal vendetta against you. In early pregnancy, hormonal and circulatory changes can increase the need to urinate. Later on, your growing uterus and baby can put pressure on your bladder. So if you find yourself planning journeys around toilet availability, welcome to pregnancy.
One thing to watch for
Needing to wee more often can be completely normal, but pain or burning when you urinate, blood in your urine, fever or feeling unwell can indicate a urinary tract infection. UTIs are worth treating during pregnancy, so contact your GP or maternity team if you think you may have one.
Constipation
Pregnancy hormones can slow down the movement of your digestive system, which can make constipation more likely. Iron supplements can sometimes make this worse too.
Things that may help
Try:
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drinking plenty of fluids
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eating fibre-rich foods
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eating plenty of fruit and vegetables
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staying physically active
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going to the toilet when you need to rather than putting it off
If constipation is persistent or uncomfortable, speak to your midwife, GP or pharmacist about treatment options that are suitable during pregnancy.
Heartburn and Indigestion
Heartburn is another common pregnancy companion. Hormonal changes can relax the muscles between your stomach and oesophagus, while your growing uterus can put additional pressure on your stomach as pregnancy progresses. You might notice burning in your chest, indigestion, burping or an unpleasant acidic taste.
You could try:
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eating smaller meals
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avoiding lying down immediately after eating
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sitting upright when eating
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identifying foods that trigger your symptoms
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asking your pharmacist or maternity team about pregnancy-safe medication if needed
You don't have to spend the final three months of pregnancy surviving exclusively on dry toast. There are treatments available.
Headaches
Headaches can be common during pregnancy, particularly in the early stages. They can be associated with hormonal changes, tiredness, dehydration, hunger, stress or changes to your usual caffeine intake. Rest, hydration, regular meals and gentle relaxation may help.
However, a severe headache in pregnancy should not simply be written off as "just pregnancy". A severe headache, particularly if it is accompanied by visual disturbances, vomiting, sudden swelling or feeling very unwell, needs prompt medical assessment because it can be a symptom of pre-eclampsia.
Vaginal Discharge
It is normal to have more vaginal discharge during pregnancy.
Healthy pregnancy discharge is usually:
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thin or slightly milky
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clear or white
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not unpleasant smelling
You may notice considerably more of it as pregnancy progresses. However, if your discharge changes significantly, becomes unpleasant-smelling, is associated with itching or soreness, or you think you may be leaking amniotic fluid, contact your maternity team.
Mild Abdominal Cramps
Mild cramping or period-like pains can happen during pregnancy. They may be related to your uterus growing, stretching of the surrounding ligaments, constipation or trapped wind. But abdominal pain can have many different causes.
Seek medical advice if pain is severe, persistent, worsening or accompanied by bleeding, dizziness, fever, shoulder-tip pain or other concerning symptoms. If you're worried, it's always appropriate to contact your maternity team.
Aches, Pains and Pelvic Discomfort
As your body changes, you may experience aches and pains in your:
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back
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hips
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pelvis
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ribs
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legs
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feet
Your growing bump changes your posture and centre of gravity, while your muscles and joints adapt to increasing physical demands.
Some people experience pelvic girdle pain (PGP), which can cause pain around the pelvis, lower back, hips or thighs. PGP is common, but it isn't something you simply have to endure. Early assessment and appropriate support can make a significant difference. Your midwife can refer you to a physiotherapist or other appropriate service if necessary.
Swelling
Some swelling of the feet, ankles and fingers can be common during pregnancy, particularly later on. It can be more noticeable towards the end of the day or when you've been standing for a while. Gentle movement, avoiding prolonged standing and putting your feet up can sometimes help.
But sudden swelling matters
Sudden swelling of your face, hands or feet, particularly when accompanied by a severe headache, visual disturbances, pain under your ribs or feeling very unwell, can be a sign of pre-eclampsia. Seek urgent advice from your maternity team if you experience these symptoms.
Braxton Hicks Contractions
You may notice your uterus tightening and then relaxing during pregnancy, particularly later on. These are often called Braxton Hicks contractions. They can feel like your bump suddenly becomes very firm before relaxing again.
Braxton Hicks are sometimes described as "practice contractions", but your uterus isn't sitting around rehearsing for the big performance.
They're a normal part of pregnancy and tend to become more noticeable as pregnancy progresses. Unlike established labour, they generally don't develop into a regular pattern that progressively becomes stronger, longer and closer together. If you think you may be in labour, particularly before 37 weeks, contact your maternity team.
Sleep Problems
Pregnancy can make sleep more complicated.
You may struggle because of:
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needing to wee
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heartburn
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an uncomfortable bump
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back or pelvic pain
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restless legs
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feeling hot
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an increasingly active baby
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racing thoughts about the fact that you're actually going to have a baby
Try to prioritise rest rather than becoming obsessed with achieving "perfect" sleep. A comfortable bedtime routine, pillows for support, gentle movement during the day and relaxation techniques may all help. And if you can nap, nap. There is no prize for refusing one.
Pregnancy Brain and Emotional Changes
You may notice that your concentration, memory or mood feels different during pregnancy. Hormonal changes, poor sleep, physical discomfort and the sheer psychological enormity of becoming a parent can all play a part.
You may find yourself:
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forgetting why you've walked into a room
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becoming more emotional
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worrying about things you wouldn't normally worry about
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feeling overwhelmed
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feeling unusually irritable
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experiencing anxiety about pregnancy or birth
Some emotional changes are a normal part of pregnancy, but you don't have to struggle with anxiety or low mood on your own. Your mental health is part of your antenatal care. Talk to your midwife or GP if you're struggling.
When Should You Seek Help?
One of the hardest things about pregnancy is knowing where the line is between "this is weird but normal" and "I should probably tell someone about this." You don't need to become an expert in obstetrics. If you're worried, ask.
Contact your maternity team if you experience symptoms such as:
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vaginal bleeding
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severe or persistent abdominal pain
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severe headache
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visual disturbances
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sudden swelling
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fever or feeling very unwell
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pain or burning when urinating
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fluid leaking from your vagina
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regular contractions before 37 weeks
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reduced or changed fetal movements once you have an established pattern
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anything else that feels concerning to you
If something feels wrong, trust yourself enough to ask for advice. You aren't wasting anyone's time by checking.
A Final Word
Pregnancy symptoms can be bizarre. Some are annoying. Some are exhausting. Some are downright embarrassing. And some disappear just as you get used to them, only to be replaced by something else entirely.
Learn what is common. Know which symptoms need checking. And ask for help when you need it. There is a difference between normal and something you have to put up with. You can have a normal pregnancy symptom and still deserve support for it.
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