When the test result shows “High” fertility, it's already a good timing for baby dancing, which maximizes the chance to conceive.
As for the “Peak” notification, it may appear shortly (8-12 hours) after the “High”. Therefore, if you perform the test once a day, you might miss “Peak” after receiving “High”. However, having sex after getting either “Peak” or “High” can maximize the chance of pregnancy since sperm can survive in the reproductive tract for a maximum of 5 days, which is much longer than the egg's life.