If you’ve had any spotting or light bleeding in early pregnancy (4-5 weeks) , which one was it, and can you describe the consistency and color? How long did it last?

My period was due to start today, and all i’m getting is extremely light bleeding that started off as a reddish pinkish color at first, and then it began tapering off from little to almost none at all and it’s now a brown rust color. Just curious what some other ladies might think or what kind of spotting or bleeding anyone else has had to see if it sounds familiar.