Please choose the correct ending to complete the given sentence: Health: [header] How to avoid varicose veins during pregnancy [title] Get regular exercise. [step] Varicose veins typically appear in the later stages of pregnancy, when the weight of the baby is pushing down on your pelvis. Try to do low-impact exercises throughout your entire pregnancy to keep your blood flowing and minimize your chance of developing varicose veins.

Ending1: If you skip your regular exercise routine for the duration of pregnancy, varicose veins develop. [substeps] Try to avoid drastic changes in your diet or exercise routine that may help to prevent varicose veins from forming. Ending2: [substeps] Try to get at least 150 minutes of moderate-intensity exercise per week. If you have a dog or cat, try to do at least 10 minutes of moderate to vigorous exercise per day. Ending3: Talk with your doctor about what exercises are best for you, especially during late pregnancy. [substeps] Walking and swimming are good low-impact exercises. Ending4: [substeps] Try to be active for at least 30 minutes a day for the best results. Visit your local gym and do hand stands or leg raises to help stretch and strengthen your quads.

Answer format: ending1/ending2/ending3/ending4