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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Yes, usually. Heartburn, constipation, piles, mild to moderate sickness and short-lived diarrhoea are assessed by video and treated with pregnancy-compatible medicines when needed; vomiting that stops fluids staying down, pain under the ribs after 20 weeks, bleeding or severe pain go to the maternity unit.
- What they are: the effects of progesterone slowing the gut and the womb pressing on it: nausea in 7 in 10 pregnancies, heartburn in up to 8 in 10 by the third trimester, constipation in 4 in 10, piles in up to half.
- By trimester: nausea dominates weeks 6 to 16, heartburn and constipation build through the second trimester as the womb rises, and night reflux, piles and bloating peak in the third; most settle within days to weeks of the birth.
- Medicines: antacids and alginates after meals and at bedtime, then omeprazole for heartburn; fibre, fluids, ispaghula and lactulose for constipation; soothing creams and short anaesthetic or steroid courses for piles; cyclizine or a vitamin B6 and doxylamine combination for sickness; antacids 2 hours apart from iron.
- Warning signs: vomiting with weight loss, dizziness or dark scanty urine is hyperemesis; pain high in the abdomen or under the right ribs after 20 weeks, with headache, visual disturbance or sudden swelling, is treated as pre-eclampsia until proved otherwise; both need the maternity unit without delay.
- Emergency: call 112 for severe constant abdominal pain, heavy bleeding, collapse, a seizure, or vomiting blood; go to the maternity unit for reduced baby movements with any digestive symptom.
Two patterns should skip the booking page. If you cannot keep fluids down, are losing weight, feel dizzy or are passing little, dark urine, that is severe pregnancy sickness: get medical advice the same day through your maternity unit or urgent care. And pain high in your tummy, under the ribs and especially on the right, from 20 weeks onwards can be a sign of pre-eclampsia rather than indigestion: contact your midwife or maternity unit urgently, especially with headache, vision changes or sudden swelling. Severe abdominal pain, bleeding or reduced movements: maternity unit now, or 112 if you are collapsing or bleeding heavily.
Can an online doctor help with digestive problems in pregnancy?
An online doctor can assess and treat the common digestive problems of pregnancy: heartburn and indigestion, constipation, haemorrhoids and mild to moderate nausea. Treatment uses options compatible with pregnancy, from alginates and certain antacids to laxatives and anti-sickness medicines where needed. Vomiting with dehydration, or upper abdominal pain after 20 weeks, needs same-day maternity assessment instead.
Digestion bears more of pregnancy than almost any other system: progesterone relaxes the muscle of the gut, so everything moves slower, valves close less tightly, and the growing uterus squeezes what is left. The result is the familiar trio of heartburn, constipation and haemorrhoids, plus nausea in early pregnancy. All are common, all are manageable, and none should simply be endured for months when safe treatment exists.[2]
What is treated online in pregnancy digestive problems, and what needs in-person care
Usually handled online: all three conditions in this section, because relieving these symptoms is a standard part of antenatal care, not an optional extra.[4]
- Constipation in pregnancy: fibre, fluids and pregnancy-suitable laxatives
- Haemorrhoids in pregnancy: topical treatment and habits that break the cycle
- Indigestion and heartburn in pregnancy: alginates first, stronger acid control when needed
Assessed online, but often needs in-person or urgent care: the escalation in this area belongs to pregnancy sickness, which has its own guide.
- Morning sickness and hyperemesis: nausea you can drink through is treated online, but vomiting that stops fluids staying down needs same-day maternity assessment and usually rehydration
Pages in this section
Pregnancy sickness has its own dedicated guide, including severe sickness and the treatments that actually work: see morning sickness and hyperemesis gravidarum.
Why does pregnancy upset digestion?
Three forces stack up. Hormones, mainly progesterone, relax smooth muscle throughout the digestive tract, which slows the gut and loosens the valve between stomach and food pipe, letting acid rise. Mechanics follow: the uterus grows into the space the stomach and bowel used to occupy, worsening reflux and pressure on veins around the back passage. And iron supplements, valuable for anaemia, are famously constipating, which is worth mentioning to a doctor rather than quietly stopping the iron.
The pattern typically shifts by trimester: nausea dominates the first, heartburn and constipation build through the second, and by the third, reflux at night and haemorrhoids are at their peak. Knowing the mechanics matters because it points at the fixes: smaller meals, fibre and fluids, positioning at night, and targeted treatment where self-care runs out.[2]
When is stomach pain in pregnancy serious?
Most upper tummy discomfort in pregnancy is reflux or indigestion: burning behind the breastbone, worse after meals or lying down, relieved by antacids. The serious mimic is pre-eclampsia: persistent pain high in the abdomen, often under the right ribs, from 20 weeks onwards, particularly with severe headache, visual disturbance, sudden swelling of face or hands, or simply feeling suddenly unwell. That pattern needs urgent maternity assessment and blood pressure measurement, not a stronger antacid.[3]
Lower down, cramping with vaginal bleeding at any stage, severe one-sided pain in early pregnancy, or constant severe abdominal pain later on all belong with your maternity unit the same day. Vomiting has its own escalation rule: nausea you can live around is common, but vomiting that stops fluids staying down, with weight loss or scant dark urine, is hyperemesis gravidarum territory and needs same-day assessment and often rehydration, because effective anti-sickness treatment exists and nobody should white-knuckle it.[1]
Online care or maternity care for digestive symptoms?
Swipe sideways to compare →
| Situation | Likely first step | Suitable for online care? | Where to go instead |
|---|---|---|---|
| Heartburn or indigestion, worse after meals or at night | Diet and position changes, then alginates or antacids; further options after assessment[2] | Usually yes | Maternity review if pain localises under the ribs or will not settle |
| Constipation, straining, or itchy painful haemorrhoids | Fibre, fluids and movement, plus suitable laxatives or topical treatment | Yes | In-person review for bleeding that is more than streaks, or severe pain |
| Nausea and vomiting you can still drink through | Small frequent meals and fluids; anti-sickness options after assessment[1] | Often yes | Escalate the same day if fluids stop staying down |
| Cannot keep fluids down, losing weight, dizzy, dark scant urine | Same-day assessment and usually rehydration | No | Your maternity unit or urgent care today |
| Pain under the ribs after 20 weeks, severe pain, bleeding, or fewer movements | Urgent maternity assessment[3] | No | Maternity unit now; 112 if collapsing or bleeding heavily |
Not sure which row is you? A doctor can tell you in one consultation.
See available times →What the doctors help with here
- Heartburn that outgrew self-care: reviewing what you have tried, then stepping up through alginates and antacids to acid-reducing medicines that can be used in pregnancy when symptoms warrant them.
- Constipation with the iron question answered: practical fibre and fluid targets, which laxative types suit pregnancy, and how to keep taking iron without paying for it in comfort.
- Haemorrhoids handled without embarrassment: topical options, toilet habits that stop the cycle, and honest advice on what resolves after birth.
- Nausea taken seriously early: assessment of how much you are actually keeping down, anti-sickness options used in pregnancy, and a clear line for when same-day care is needed.
- The pre-eclampsia check: every upper-abdominal-pain consultation after 20 weeks asks about headache, vision, swelling and blood pressure history, so indigestion is never assumed.
When you need maternity services instead
See your midwife or maternity unit the same day for upper abdominal pain from 20 weeks, especially with headache, visual changes or sudden swelling; vomiting with dehydration, weight loss or ketotic, scant urine; abdominal pain with bleeding, fever or a change in your baby's movements; and black stools or vomiting blood, which need urgent in-person assessment at any stage of life, pregnant or not. Severe pregnancy sickness usually also needs blood tests and sometimes a day-unit rehydration visit, so the honest route is assessment in person first, with online follow-up once you are stable. If your doctor decides you need to be seen in person, you get a full refund and clear directions to the right care.
When to get in-person care
Contact your midwife or maternity unit the same day for pain under the ribs after 20 weeks, vomiting that stops fluids staying down, abdominal pain with bleeding or fever, or any change in your baby's usual movements. Call 112 for severe constant abdominal pain, heavy bleeding, vomiting blood, or if someone is collapsing, fitting or severely short of breath.
The daily routine that prevents most pregnancy digestive misery
Most digestive problems in pregnancy respond better to a boring daily routine than to any single medicine, because the causes build slowly and respond slowly. The routine the doctors describe has four parts. Eat smaller meals more often, and stop eating two to three hours before lying down, which protects the squeezed stomach from overflowing upwards at night. Drink through the day rather than in large gulps with meals.
Move every day, even a twenty-minute walk, because the gut slows when you do. Keep fibre climbing gradually: fruit, vegetables, oats and wholegrains, increased over a week or two rather than overnight, so bloating does not spike. And answer the urge to open your bowels promptly instead of postponing it, which is half the battle against both constipation and piles.
Build that base first, and the medicines described on the pages in this section, the safe laxatives, antacids and creams, work better and are needed less. Skip the base, and every medicine fights uphill.
How Mobi Doctor works
- Book a time that suits you: open daily 7am–11pm CET. You can see a doctor over video, usually within 15 minutes. No subscription, exact price up front.
- Speak to a licensed doctor about digestive problems in pregnancy: a private video call: you describe what you feel, the doctor asks what matters, and you agree the right plan together.
- Leave with your plan: everything agreed before you hang up: your plan, and a prescription to use at a pharmacy near you where medication is clinically right for you. If your doctor decides you need to be seen in person, you get a full refund.
No sign-up needed
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Frequently asked questions about digestive problems in pregnancy
What causes digestive problems in pregnancy?
Two forces take turns. Early on, progesterone slows the whole gut to extract more from every meal, which drives nausea, bloating and constipation, while the rising pregnancy hormone hCG fuels sickness. Later, the womb pushes the stomach up and the bowel aside, the valve at the top of the stomach relaxes, and pressure on the pelvic veins swells piles; iron tablets add constipation, and less movement and changed eating add to all of it.
What digestive symptoms are normal in each trimester?
First trimester: nausea, vomiting, food aversions, bloating, wind and constipation from about week 6, easing by 16 weeks. Second trimester: heartburn and constipation build as the womb rises, with a quieter stomach. Third trimester: reflux at night, fullness after small meals, piles, bloating and sometimes loose stools before labour. Blood in vomit or stool, pain under the ribs after 20 weeks, and persistent vomiting are not normal at any stage.
Can an online doctor prescribe heartburn or constipation treatment during pregnancy?
Yes, after a consultation, when treatment is right for you. Antacids and alginates are first-line for pregnancy heartburn, with omeprazole when they are not enough; bulk-forming laxatives and lactulose come first for constipation; soothing or short anaesthetic creams for piles; and anti-sickness tablets for persistent nausea. The prescription is usable at a pharmacy near you, and a prescription is never issued without a consultation.
Is heartburn in pregnancy harmful to my baby?
No. Reflux is uncomfortable for you but does not affect your baby, and the old tale linking heartburn to a hairy baby is folklore with, at most, a weak statistical echo. The digestive problems that matter for the baby are the ones that stop you keeping fluids and food down for days, or pain under the ribs that signals pre-eclampsia; ordinary heartburn simply needs treating so you can eat and sleep.
When does pregnancy sickness become an emergency?
When fluids stop staying down. Vomiting with weight loss, dizziness, passing only small amounts of dark urine, or being unable to keep any fluid down for 24 hours suggests hyperemesis gravidarum, which affects about 1 to 3 in 100 pregnancies and needs assessment through the maternity unit or urgent care without delay, often with a drip and anti-sickness medicine. Vomiting blood, severe abdominal pain or fainting means 112.
Why is pain under my ribs a warning sign after 20 weeks?
Because persistent pain high in the abdomen, especially under the right ribs, can be a sign of pre-eclampsia, a blood pressure complication that affects the liver, rather than indigestion, particularly with a severe headache, visual disturbance, sudden swelling of the face and hands or vomiting. It needs blood pressure, urine and blood tests at the maternity unit without delay; antacids that do nothing for it are a clue, not a treatment.
What should I do about diarrhoea during pregnancy?
Most diarrhoea in pregnancy is a short-lived stomach bug, the one digestive problem that usually needs no medicine: keep drinking small, frequent amounts of fluid, use oral rehydration sachets, eat plain food as you can, wash hands carefully, and it usually settles within 48 hours. See a doctor if it lasts beyond 2 days, you cannot keep fluids down, there is blood or high fever, or you feel faint; loperamide is avoided without advice.
How long do digestive problems last in pregnancy?
Nausea usually eases between 12 and 16 weeks, though 1 in 10 women feel sick beyond 20 weeks; heartburn and constipation tend to worsen as the bump grows and clear within days to weeks of the birth; piles shrink over the first weeks after delivery; bloating and wind settle once hormones fall. Symptoms that persist months after birth, or that do not respond to the usual treatment within two weeks, are reassessed.
What can I do myself about digestive problems in pregnancy?
Eat small meals often rather than three large ones, finish eating three hours before bed, sit upright after meals and sleep propped up on the left side, cut fatty, spicy and acidic food, caffeine and fizzy drinks, build up fibre and fluids gradually, walk daily, respond to the urge to open your bowels without straining, take antacids two hours away from iron, and keep ginger, dry biscuits and cold drinks within reach for nausea.
How can I prevent heartburn, constipation and piles in pregnancy?
One daily routine prevents most digestive problems in pregnancy: fibre at every meal and plenty of fluid, a walk each day, meals that are small and early, sleeping propped up on the left, never straining or sitting long on the toilet, and asking the doctor to change an iron tablet that constipates you rather than stopping it. Starting this in the second trimester, before the bump compresses everything, beats catching up in the third.
Why am I so bloated and windy in pregnancy?
Because progesterone slows the gut from the first weeks, so food ferments longer and gas builds, and later the womb crowds the bowel; constipation, swallowed air from eating quickly, fizzy drinks and some high-fibre foods add to it. Bloating and wind are harmless digestive problems that ease with smaller slower meals, regular bowels, walking and peppermint; a swollen tense abdomen with pain and vomiting is a different matter and is seen in person.
Is it indigestion, pre-eclampsia, gallstones or appendicitis?
Indigestion is burning behind the breastbone after meals or lying down, eased by antacids. Pre-eclampsia pain is high under the right ribs after 20 weeks, with headache, visual change or swelling, and antacids do nothing. Gallstone pain is severe, in waves under the right ribs after fatty food, often with vomiting. Appendicitis in pregnancy starts near the navel or higher on the right, worsens steadily, with fever. The last three need in-person assessment without delay.
- Nausea/vomiting in pregnancy, NICE CKS, Clinical Knowledge Summaries, reviewed 2024.
- Dyspepsia: pregnancy-associated, NICE CKS, Clinical Knowledge Summaries, reviewed 2023.
- Hypertension in pregnancy: diagnosis and management (NG133), NICE, National Institute for Health and Care Excellence, 2019 (updated 2023).
- WHO recommendations on antenatal care for a positive pregnancy experience, WHO, World Health Organization, 2016.
- Indigestion and heartburn in pregnancy, NHS, National Health Service (UK), reviewed November 2023.
This page is for information only and is not a substitute for a medical consultation. Guideline links are provided for transparency; treatment decisions are made with your doctor.
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