Breastfeeding and Period

Hello Ladies 🙋‍♀️ so at this point I'm 7months PP. I think I got my period at like 2 months PP but it was more spotting than anything just lasted one day ( I call it a period bc my supply dipped a bit) then last month at 6 months PP I got my first REAL period. I was due for it again 3 days ago so I'm 3 days late. Already took a hpt so I'm not pregnant. Just wondering if this has happened to anybody where you start skipping periods due to the breastfeeding? My first DS I got my period month after he was born and never skipped a day or was ever late so this is a new thing for me.

I do want to add that like a week ago I was "spotting" but it was more like old blood really brown and not consistent at all and lasted 3 day. Could that have been my period? Did I miss it? I am however cramping so that's why I feel like that may not have been my period.