Has anyone had pink spotting way before your first postpartum period started?

I’m breastfeeding my 8 month old and haven’t had a period. 5 days ago I had light pink spotting on the paper and then the next time I went to the bathroom it was completely gone and I’ve had none since. I’m hopeful it’s implantation bleeding. (I had it with my first baby) but I’m also trying to be realistic and consider that it could maybe be my period trying to come back? But if it’s already been 5 days... when would I expect it to start?? Anyone experienced this?