Diarrhoea and vomiting in pregnancy

Stomach bugs in pregnancy are common. It is very unlikely that your baby will be harmed from a bug lasting less than 48 hours.

Stomach bugs can be exhausting for you and you should look after yourself if you catch one while pregnant.

Stomach bugs in pregnancy

Here are a few simple rules to remember if you do have a stomach bug:

  • If you do have diarrhoea and vomiting, don’t panic.
  • Make sure you rest as much as possible.
  • Drink plenty of water through the day.
  • Eat small, light meals if you are hungry and it doesn't make you feel sick. If you are not hungry, you do not have to eat for 24 hours so long as you drink plenty of fluid.
  • Wash your hands before and after going to the toilet and after vomiting.

When should I see a doctor with diarrhoea and/or vomiting in pregnancy?

If the diarrhoea does not go away within 48 hours, see your GP.

You must NOT take any medication to stop diarrhoea in pregnancy without consulting a medical professional or pharmacist first.

If you also have any of the following you should see a medical professional as soon as possible:

  • a fever
  • any stomach pain
  • very dark urine
  • blood in the stool.


  1. Barking, Havering and Redbridge University Hospitals NHS Trust, FAQs pregnancy. Also available at: http://www.bhrhospitals.nhs.uk/our-services/faqs-pregnancy.htm#q7 (accessed 28 April 2014)
  2. Macdonald S, Magill-Cuerden J, Mayes’ midwifery, fourteenth edition, Edinburgh Baillir̈e Tindall Elsevier, 2012


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  • By Anonymous (not verified) on 29 Nov 2017 - 22:22

    No to morning sickness tea is Godsend. I was on Zofran to manage my severe morning sickness and the side effect has been constipation. As someone that “goes” quite regularly, having my “schedule” thrown off was really causing havoc on my body. 4 mornings of drinking the tea on an empty stomach has worked like a charm. I also think it has helped with heartburn and indigestion-

  • By Midwife @Tommys on 30 Nov 2017 - 14:07

    Hi, Thank you for your comment.
    Pregnancy sickness isn't enjoyable and every pregnant woman will have her own ways of coping with this. We advised that in pregnancy to try and drink plenty of fluids, maintain a healthy diet and rest well when feeling nausea or vomiting. If vomiting worsens and fluids can't be kept down, then it is advisable to see the GP who will check for signs of dehydration. Take care, Tommy's Midwives x

  • By Midwife @Tommys on 10 Nov 2017 - 10:16

    Hi, I am sorry to hear that you are unwell at the moment. You do not mention how many weeks pregnant you are however the most important thing is to try and stay hydrated, taking small sips of water through out the day. If you are unable to keep down any water or your dark urine continues or you have any other symptoms such as pain or bleeding then do ring your GP for advice.

  • By Anonymous (not verified) on 9 Nov 2017 - 18:02

    I have had diarrhea and vomiting and dark urine since 2am yesterday what should I do

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