Period 4 days late was due the 23rd..NOTHING

Ive been having every symptom in the book i tested again today and BFN !! 4 days late. Im just so confused. If it doesnt come by the 1st im gonna make a docs apt 🤦🏽‍♀️ my period is always on time. Last time my period was late i was pregnant. Then again i remember i didnt test until my docs appt by that time i was already 6 or 7 weeks. Im just gonna keep waiting i guess. Oh and my apetite has increased. Im always feeling like im starving