Please choose the correct ending to complete the given sentence: Health: [header] How to use a pregnancy pillow [title] Select a wedge-shaped pillow. [step] Use wedge-shaped pillows to prop your head or back while sitting or reclining or to support your back or belly while lying on your side. You can even use wedge-shaped pillows to prop a hot water bottle up against your back.

Ending1: [substeps] If you don't have much of a back or belly, avoid the wedge-shaped pillows that are padding the fragile parts of your arms and legs. Instead, opt for soft pillows meant for comfort instead. Ending2: Research different pillows and any sleep aids you may need. [substeps] Wedge pillows are more sanitary than tabletop pillows because the pillows are not designed to stay upright. Ending3: [substeps] Wedge-shaped pillows are convenient because they are small and easily portable. However, because they are small, you will still need to use a regular pillow for your head. Ending4: [substeps] If you're uncomfortable supporting your head or back while sitting or reclining, you might consider the other pillow. Pillows won't provide enough room for you to bend your head or put extra weight on your neck.

Answer format: ending1/ending2/ending3/ending4