I forgot I was wearing a tampon.

Yesterday I had a concert, but an hour or two before it started I noticed some signs that my period was going to start soon (I get brown spotting before & after my cycles). So, I put a tampon on just in case since I didn’t want to be worried about it at the concert. It was a looonggg day and i didn’t come home til after midnight. I woke up today to pee and completely forgot I still had it in?! No blood or anything but should I be concerned ? What should I do