Instant two lines but test was white line

Literally watching the pee (gross yup I know) go from one end to the other, an instant line came up (white) then the control line (pink)

After a few mins the white line where it usually states whether “pregnant” or not was gone.

Has anyone had this ? I took pics as it was happening I was hoping it would change to pink but eventually disappeared.

Again this was instant ... I’m confused HELP !!