2 day period?

I had my second baby 7 months ago, ever since I had the baby my periods have been pretty normal and regular.

A lot heavier then they use to be but regular 5 days at least.

A week before I was suppose to get my period this month I thought I was starting it but only had light bleeding one day and then the next day barely spotting.

So two days?

Anyone else have an issue similar?

Could it be pregnancy?

Im not on birth control