Postpartum periods irregular?

Hi ladies,

In my head...it's normal for postpartum periods to be a bit all over the place/irregular?

I had my daughter in July.

I had my period starting 1st or 3rd of September (it was kinda on/off from 1st - 3rd) so not sure which day would be considered the 'start of the period'.

So far this month I've not had anything, the odd period cramping here and there but nothing major and no blood, is this normal? We have been having protectedd sex.

Sorry if it's a silly question but I went straight back to regular cycles after my son so this is a bit different to me.