Is their a chance my egg is still viable today?


I usually ovulate on CD21-22 but this month I was super stressed ect and it just didn't happen.... I then got my positive on CD 30 meaning I ovulated sometime between CD30 and 31... today's cd 31 so I thought I should BD today too incase the egg is still viable... as I got my positive yesterday at 12 noon so I may have only ovulated the early hours of this morning! However glow has given me a 7% change as today's predictions? 🤷🏻‍♀️