It’s normal to feel warmer and sweatier than usual when you’re pregnant. This is due to changes in hormones and blood flow and can affect you at all stages of pregnancy. In later pregnancy, carrying your bump around can make you feel hot and bothered too.  

In early pregnancy it can be hard to tell the difference between new symptoms related to your pregnancy and the effects of hot weather.

Tiredness, feeling warm, feeling lightheaded or dehydrated can all be the effects of pregnancy. In a heatwave there’s more risk of dehydration, fainting, heat exhaustion and heatstroke. Here are some things to watch out for and some simple things you can do to stay well in the heat. 

Stay hydrated - drink water or other drinks

Drinking enough can help you stay well, especially in hot weather, and can help reduce tiredness and constipation. Try to drink about 1.6 litres a day, or 6 to 8 medium (200ml) glasses. In hot weather you’re likely to need more. Having water nearby and taking frequent sips can help you get enough to drink.  

Important

This resource provides general information and does not replace medical advice tailored to your circumstances.