Spotting - how much is too much?

an

Waiting to see my doctor. In the meantime, I have tested positive 5 or 6 times, including this morning, and pregnancy was confirmed. I am 4.5 weeks and my expected period was for tomorrow.

This morning I had some blood, the amount I usually have at the start of a period. Light but not a few drops.

What is everyone else’s experience with spotting? I’m monitoring and staying calm but also just curious and maybe a bit concerned.