7 1/2 months pp & spotting

Hey y’all I’m 7 1/2 months, almost 8, postpartum. I EBF and haven’t started my period yet. Earlier today when using the restroom I wiped and had very mucusy, stringy discharge and it had a very light hint of blood to it. Could anybody tell me what this could mean? I’m not on birth control and hubby and I are not careful at all when it comes to sex either. Is it possible I’m pregnant or am I just about to start my period? TIA!