Period late, negative tests, cramping ...

No

I know there’s lots of posts similar but I’m just curious if any of you have ever missed a period.. Not ended up pregnant yet had all the signs of Aunt Flo coming?

I’m 3 days late. All tests negative yet I’ve felt bloated cramps and all the usual symptoms of my period approaching. Of course I googled it and there’s 1 million diagnosable reasons from ovarian cancer to just a hormonal imbalance. Any insight appreciated.