What’s wrong with me???

Today I’m officially 2 weeks late I took a test Friday morning which was a negative now I’m just wondering why is my period late? I’m not stressed at least I don’t feel it, I haven’t changed my diet, I’m not sick I just don’t understand, making an appointment on Wednesday if I don’t get my period by then 🤷🏼‍♀️🤷🏼‍♀️ has anyone been 2 weeks late with a negative and still been pregnant, just confused ?¿