If a pregnant woman gets at least 150 minutes of moderate exercise each week, she’s less likely to develop gestational diabetes, high blood pressure during pregnancy, or pre-eclampsia.

If pregnant women at moderate risk for high blood pressure do regular, supervised workouts like walking, lifting light weights, or a mix of both, three times a week, it won’t make them more likely to have their baby too early.

Pregnant women who exercise more during pregnancy—like walking or swimming a lot—tend to have lower blood pressure in the last few months of pregnancy, which might help keep their hearts healthier.

If pregnant women who are at moderate risk for high blood pressure do more physical activity each week, their babies tend to be born later and weigh more at birth, which might help the baby grow healthier without becoming too big.

Doing strength exercises during pregnancy might lower the chances of getting high blood pressure or diabetes while pregnant, which could help moms stay healthier.

If a woman keeps exercising at the same level she did before getting pregnant, she’s less likely to run into pregnancy-related health problems than if she cuts back on exercise.