There is no specific mention of using hyaluronic acid during pregnancy in the provided reviews. However, hyaluronic acid is generally known for its hydrating properties and is commonly used in skincare products. If you are pregnant and considering using any skincare product, it is important to consult with a healthcare provider to ensure it is safe for you and your baby. Currently, the provided data does not offer specific insights into the benefits or risks of using hyaluronic acid during pregnancy.