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Pregnancy

When Does Morning Sickness Start?

Pregnancy is amazing, for a whole host of different reasons - the main one being the birth of your beautiful baby! But the truth is, it also comes with some not-so-amazing little gifts along the way - we're talking morning or pregnancy sickness.

When you're pregnant, your senses are heightened - like Spiderman. Unlike Spiderman, this makes you super sensitive to certain foods and smells. This can bring nausea and vomiting that can have a negative impact on your day-to-day life.

Sickness during pregnancy is not uncommon, in fact, up to 80% of pregnant people experience some nausea and/or vomiting during pregnancy, so you're not alone!

We're here to support you by answering some of the most asked questions about pregnancy sickness and giving you some top tips to cope with the symptoms it brings.

When does morning sickness start?

Typically, nausea and vomiting strikes between weeks six and nine of your first trimester - around the same time that cravings commonly start.

Symptoms can appear gradually, with an increased aversion to certain foods and smell over time, or can seem to develop overnight, like a bad hangover.

Although every pregnancy is different, sickness symptoms are usually at their worst around week 10 or 12.

How long does morning sickness last?

Most people start experiencing nausea and vomiting caused from around six to nine weeks into their pregnancy, and most will notice their symptoms ease at around 16 to 20 weeks.  

Some experience morning sickness for longer and can see it last for several months or even into their third trimester.  

While uncommon, around one to three in every 100 pregnant people can experience a severe form of morning sickness called hyperemesis gravidarum or HG.

What is hyperemesis gravidarum?

Hyperemesis gravidarum - also referred to as HG - is severe sickness that can make people very ill throughout the entirety of their pregnancy. This can lead to severe dehydration and hospitalisation.

The Duchess of Cambridge, Kate Middleton, suffered from hyperemesis gravidarum during her pregnancies, and according to the NHS, around one to three in every 100 pregnant people in the UK get HG. It's not clear why some people suffer more, although hormone levels and a family history of HG have been noted as potential causes.

Pregnancy Sickness Support is a charity working to improve care, treatment and support for pregnant people suffering from HG.

The Hyperemesis Education and Research Foundation (HER) is a global nonprofit that's dedicated to helping people with hyperemesis gravidarum.

What does morning sickness feel like?

Morning sickness affects every pregnant person differently. Some feel nauseated for a short time each day and vomit once or twice. Others experience nausea that lasts several hours each day and they vomit more often.

Some people liken it to seasickness or car sickness accompanied by hunger pangs, and it can lead to strong aversions to certain smells and foods that can make you sick.

Some report having a metallic taste in their mouth that causes them to feel unwell, and others report excess saliva which can enhance the feeling of queasiness.