Weird period

My period was supposed to start May 6. On April 29 some blood came out and I thought my period started so I put in a tampon. When I got home after work, I went to change the tampon and it was completely clean when I took it out. Saturday, no blood. Sunday, an extremely light blood, not enough for a tampon and was only that one time. Monday, enough blood to assume I’d need a tampon. And again I get home to change the tampon and it is completely clean, and I haven’t had any blood come out since. What the heck is going on?😂