Spotting

Is it considered spotting if it’s only there when you wipe? I sometimes have light brown spotting during my cycle, but it’s NEVER been enough to show up in my underwear. It’s always a light brown dot about the size of a pen tip on the TP. I’ve shown it to my husband and he tells me it’s not spotting (he’s a physician assistant). He thinks it’s just skin cells from wiping too hard.