Morning sickness

Morning sickness is a feeling of nausea or vomiting (being sick) during pregnancy. Despite its name, morning sickness can happen at any time of the day or night.

When will I get morning sickness?

You are more likely to have morning sickness between weeks 6 and 14 of pregnancy. This is during your first trimester.

However, it can last up to weeks 14 to 20. For many women, the feelings of sickness will be over by the second trimester.

Most pregnant women have morning sickness at some point.

Morning sickness is a feeling of nausea or vomiting (being sick).

This can range from mild, which is often seen as a normal part of pregnancy, to severe, where you need medical help.

The exact cause of morning sickness is not known. It probably has something to do with hormonal changes that happen during pregnancy.

Having a balanced diet during your pregnancy will help you stay healthy. It is important to pay special attention to the 5 food groups. The best foods to eat are whole foods. Whole foods are those that are fresh and have not been processed.

If nausea or vomiting is causing you a lot of discomfort, or if you think that you have hyperemesis gravidarum, you should see your midwife, doctor or maternity care provider.

Other signs you need to see your doctor are:

• very dark urine (wee)
• blood in your vomit
• extreme tiredness
• a large amount of weight loss
• dehydration — when you can't keep fluids down

You midwife or doctor will ask you questions and can diagnose morning sickness based on your symptoms.

If you have hyperemesis gravidarum you might be sent for some tests, such as:

• blood tests
• urine tests
• an ultrasound

Self-care at home

To ease morning sickness, you can try some things at home, like:

• eating a plain cracker shortly after waking up
• eating protein-rich foods (such as nuts or cheese)
• not missing meals
• eating smaller meals more often — include morning and afternoon snacks between main meals
• not eating spicy or fatty foods
• trying to drink 8 glasses of water a day
• drinking water before and after a meal — not with food

You may find that soda water (carbonated or fizzy water), ginger tea and peppermint tea help relieve your nausea. They can also settle an upset stomach.

Some people become more sensitive to strong food smells while pregnant. If certain smells bother you, consider asking for help preparing food.

Opening windows or using a fan when cooking can help get rid of cooking smells.

Cold foods don't smell as much as hot foods. These may be a better choice for someone with morning sickness.

Nausea may feel worse when you are over-tired. Try taking a nap or having a rest during the day.

Other things that may help with morning sickness are:

• deep breathing or relaxation exercises
• anti-nausea wristbands — these can be bought at a pharmacy
• acupuncture treatments — when given by a qualified practitioner trained in maternal care

Medicines for morning sickness

If your symptoms are severe or don't get better, your midwife or doctor might suggest antiemetic medicine, which helps stop nausea and vomiting.

Be sure to check with your midwife, doctor or maternity care provider before you take any supplement, prescription or over-the-counter medicine, while pregnant.

Check for information on your medicine.

If you are vomiting whenever you eat or drink, seek help. Early treatment can protect you and your baby from health complications. If morning sickness is not treated, you can get dehydrated and weak. It can also affect your mental health.

If you have severe vomiting for a long time, you may need monitoring and treatment in hospital.

In hospital, an intravenous (IV) drip is put into a vein in your arm. This is used to give the salts and fluids you need. It will also prevent dehydration.

Some people are more likely to have nausea during pregnancy than others. Morning sickness is hard to predict.

Women who had morning sickness during a past pregnancy are more likely to have it again. Talk to your midwife, doctor or maternity care provider about what you can do to reduce morning sickness during your next pregnancy.

Some women who get travel sickness or migraines can also be more likely to have morning sickness.

• To learn more about both nausea and vomiting in pregnancy and hyperemesis gravidarum you can visit the Hyperemesis Australia (Opens in new tab) website.
• The Royal Women's Hospital has a fachseet on coping with nausea and vomiting in pregnancy (Opens in new tab).
• You may also want to look at the resources and support provided by PANDA (Opens in new tab) — Perinatal Anxiety & Depression Australia. PANDA specialises in supporting families during pregnancy and the first year of your child's life. You can also call PANDA on 1300 726 306.
• Find out about Ready to COPE (Opens in new tab), a free weekly email series that covers pregnancy, birth and the first year of being a parent.

Languages other than English

• You can read the factsheet from the Royal Women's Hospital about nausea and vomiting in pregnancy (Opens in new tab) in multiple languages through the Health Translations website.
• NSW Health has information about hyperemesis gravidarum (Opens in new tab) translated into multiple community languages.