Quick answer: ACOG lists specific warning signs during pregnancy that mean stop exercising and call your ob-gyn. The CDC separately lists urgent maternal warning signs during and after pregnancy.

What ACOG says

ACOG's patient FAQ: "Whether you're a seasoned athlete or a beginner, watch for the following warning signs when you exercise. If you have any of them, stop and call your ob-gyn."

• "Bleeding from the vagina"

• "Feeling dizzy or faint"

• "Shortness of breath before starting exercise"

• "Chest pain"

• "Headache"

• "Muscle weakness"

• "Calf pain or swelling"

• "Regular, painful contractions of the uterus"

• "Fluid gushing or leaking from the vagina"

Source: ACOG: Exercise During Pregnancy

Committee Opinion 804 gives a matching list of "Warning Signs to Discontinue Exercise While Pregnant" and adds abdominal pain.

Source: ACOG Committee Opinion 804

What the CDC says

The CDC's HEAR HER campaign (not ACOG) lists urgent maternal warning signs "during pregnancy and in the year after delivery" and says to "Seek medical care immediately if you experience any signs or symptoms that are listed below." Its headings include "Headache that won't go away or gets worse over time," "Dizziness or fainting," "Changes in your vision," "Fever of 100.4°F or higher," "Extreme swelling of your hands or face," "Trouble Breathing," "Chest pain or fast-beating heart," "Severe belly pain that doesn't go away," "Vaginal bleeding or fluid leaking during pregnancy" and "Vaginal bleeding or discharge after pregnancy."

Source: CDC HEAR HER: Urgent Maternal Warning Signs

Questions about your own pregnancy, birth or recovery belong with your doctor or primary healthcare provider.

Related articles

• Is it safe to exercise during pregnancy?

• How hard should I work out while pregnant?

• Exercising in heat, hydration and altitude during pregnancy

• When can I start exercising after giving birth?

MOMDAY is not a healthcare provider. This article shares general information from public health sources such as ACOG and is educational only, not medical advice, diagnosis or treatment. Always talk with your doctor or primary healthcare provider about what is right for you, and never delay seeking care because of something you read here. If you think you have an emergency, call 911 or your local emergency number.