The status line of pcb_new might not list all nets. I suspect it only lists nets with at least two pads on it.
So it might be that the coun't differs because you have named nets in eeschema that only have one pin on them.
I am not sure what you want to check.
If you want to check your schematic, run ERC.
If you want to check your pcb run DRC.
If you want to check if kicad does the conversion from schematic to pcb correctly you might need to do that by hand. (Everybody else just trusts kicad here.)