Extremely dizzy! Help!!

As of tomorrow I will be 2 weeks late for AF.. no usually period symptoms whatsoever! 4 BFN.. last one being Saturday morning. But for the past couple days I have been very dizzy.. even when I am laying down in bed. Anyone have this happen when AF is late. I know I need to be seen by a doctor.. just trying to see if it will pass first & trying to give AF a little more time to show her ugly face!!