Being pregnant in summer can be particularly challenging due to the increased risk of heat-related issues. Everyone needs to be mindful of heat exposure, but it’s especially critical for pregnant women.

One of the primary concerns in hot weather is overheating.

“When you are dehydrated, there isn’t enough water around the baby, or amniotic fluid,” says Sonya Harden, a certified nurse midwife at Tidelands Health. “That lack in fluid can cause a number of health issues for the baby, which is why it’s so important to maintain hydration.”

Pregnant women can become dehydrated more quickly due to increased water needs, morning sickness and hormonal as well as physical changes. They should watch for the same heat-related symptoms others may experience, including dry mouth, dizziness, dark urine, muscle cramps and headaches.

While heat-related illness can happen at any time throughout pregnancy, it can become difficult to maintain hydration in the third trimester because of the demands on the body, Harden says.

And if you are pregnant in the summer, do what you can to limit your exposure in the heat.

“Use sunscreen, dress in cooling clothing that covers your arms and legs and keep something cool to drink nearby – these steps can help reduce your risk,” says Harden. “Even running your wrists under cool water can help to cool your body down.”

If a pregnant woman suspects she is experiencing heat-related illness, she should immediately seek shade or air conditioning and hydrate. Severe symptoms like fever, nausea, vomiting or diarrhea should warrant a trip to the emergency department.

“If your body temperature rises above 101°F, it can lead to complications in the pregnancy,” says Harden. “It could cause growth restriction, where the baby doesn’t grow as well. It could also cause preterm labor.”

To avoid dehydration, increase your fluid intake. Consider carrying a water bottle or taking frequent water breaks if you plan to be outdoors in the summer.