What to do next

Im now 10 days late for my period tested at 7 days late got negative on a cheap test haven't done another one as I think I'm just being paranoid . No birth controlled used except pull out method which I have been using for 3 months now with no problems before now .im not stressing about it as I know it can delay it further . What should I do next book a doctors app? Take another test? Wait for period to arrive . Also have no period symptoms maybe slightly sore breast . I had a stomach bug last week aswell . Any help would be appretiated xxx