It's easy to say try not to stress too much, but I understand that it's not easy for you to just relax!

Spotting can be quite normal I had a bleed with DS#1 that was as heavy as my normal period (which are heavy) and he's 17yrs old now.

I only had the one big bleed for a week then nothing, but everyones different so it's hard to predict when it will stop for you.

Sorry i don't have a magic answer to make you feel better right away but hope that knowing it's not completely uncommon has helped a little.

Hang in there