Late AF warning if TMI !!

hi really needing some advice. 
​I was due on Sunday 21st my periods are normally very regular I'm on a 28 day cycle. I'm now two days late. having quite a few symptoms - nausea which went away after eating last week, feeling wet down there (sorry tmi) , fatigued, had cramps Saturday but no AF, high cervix but hard I have tested a couple of times since Sunday but still no's really stressing me out now just want an answer either way. also I was sick on Sunday but think that may have been a bug. can someone please advise if they've had similar symptoms followed by BFP.