Throughout pregnancy it's important to avoid overheating and dehydration. Pregnant or not, it's crucial to protect your skin from the sun's damaging rays. But you don't need to hibernate inside throughout your pregnancy.
Go ahead and enjoy the outdoors while heeding a few precautions. Whether you're lying out in the sun or exercising outdoors, it's important to avoid becoming overheated and dehydrated. Avoid being out in the heat for extended periods of time, especially during the hottest part of the day. Try to enjoy outdoor activities and exercise in the morning and evening as much as possible. While you are out in the heat, sun or no sun, be sure to drink plenty of water to stay hydrated. And definitely use plenty of sunscreen, at least SPF 30, reapplying every few hours and after swimming or towel drying.