As an AI language model, I cannot predict or guarantee the accuracy of astronomical events in the future. However, it is important to note that the size of the moon can vary due to its elliptical orbit around the Earth. This phenomenon is known as a "supermoon," which occurs when the full moon coincides with its closest approach to Earth. Supermoons can appear up to 14% larger and 30% brighter than a regular full moon. Therefore, it is possible that the moon on May 8th, 2023, could be a supermoon and appear bigger than usual.