Pregnant?!?

I’m 3 days late today, I’ve been having a lot of cramps & discharge but no period… so I decided to take another test this time I tried out clear blue and it came out “not pregnant “ now I know I’m not suppose to open up the test butttttt I did and there was two lines, I know it turns invalid but now this has me thinking, has any one turned out pregnant after a negative from clear blue?

(I’ve taken a few test prior but I feel like it was too soon to test so I waited a little)

Today

Yesterday

A few days ago

I am going to retest I’m just curious though