Please choose the correct ending to complete the given sentence: Health: [header] How to prevent hemorrhoids during pregnancy [title] Prevent constipation. [step] Relieving constipation can help to prevent hemorrhoids during pregnancy and otherwise. When you are constipated, you have difficulty passing bowel movements, which in turn increases pressure on the blood vessels in the pelvic area and causes hemorrhoids.

Ending1: [substeps] Drink water as much as you can to prevent dehydration and prevent constipation. Limit your meals to around 15 to 20 minutes every other day. Ending2: To help keep you from straining yourself during pregnancy, keep a small paper cup in your purse or wallet where you can collect fresh urine. This helps to contain fluids without straining you while sitting down. Ending3: [substeps] Reduce your fluid intake by drinking at least eight glasses of water a day. This helps to balance the fluids in your system during the day and prevent constipation. Ending4: [substeps] Constipation can result due to hormonal imbalances during pregnancy. Reduce or prevent constipation by increasing your dietary fiber intake.

Answer format: ending1/ending2/ending3/ending4