Advice needed!

Hey, so just looking some advice to see if anyone else has experienced similar before.. my periods are very regular and are usually heavy for around 4 days especially the first two. I started bleeding slightly on Saturday however extremely light which I found strange. This lasted for 2/3 days, extremely light and the blood was brown? This is so unusual for me and just worrying me a little why this could be! I’ve had cramps but most of the brown blood has just been when I wipe🤔

Any thoughts? Any advice would be appreciated ❤️