Hold your breath during exercise to contract muscle pain.
Of course, we must continue to insist. You have been exercising for two weeks. You can see your abdominal muscles and feel sore. This is the effect of exercise, but also a critical moment. This period is an adaptation period, which is very uncomfortable. Therefore, it is important to stick to it, so as to get better and better, practice abdominal muscles and keep fit. I wish you an early success in fitness!