I'm confused.... Anybody got info please share....

okay so last night I took a test and it was neg. 1st picture.... this morning I took one and the 2nd line came up within a few mintes... 2nd picture. I just now took another one and I don't see anything? 3rd picture.... could it have been a messed up positive test or what? this is what it looked like about 5 hours later.... 4th picture.