During pregnancy, the growing baby puts pressure on your lower back, leading to backaches. Additionally, hormonal changes loosen ligaments and joints, further contributing to discomfort. To alleviate these symptoms while doing household chores, consider using proper body mechanics such as bending at the knees instead of the waist, taking frequent breaks, and avoiding heavy lifting. It may also be helpful to use supportive footwear and engage in regular prenatal exercises that strengthen your core muscles. If the pain persists or worsens, consult with your healthcare provider for further guidance.