Irregular periods while breastfeeding???

Lexie

So I’m currently breastfeeding my secondborn. My periods started back in January when he was around 16 months old (did the same with my first born). Following the period in January I would get a period each month but they always tended to be late. This month is the first month that I will not be getting a period. I’ve been having symptoms of getting one but it never shows. This happened when I was breast-feeding my first born as well there would be months at a time where I would not get a period. So what I’m trying to ask is do any of you moms have irregular periods while you’re breast-feeding your little one? Can breast-feeding called irregular periods?