No period, negative pregnancy test.

My period is 5days late, and all the pregnancy tests i have taken says negative. I normally have regular periods always on time, except when I’m pregnant. I had a miscarriage in December 2019, so I’m concerned. I don’t wanna over react or overthink it too much, but that’s hard not to do. Has anyone else been or is going through this???? Any word of advise will be appreciated!!!!