Tampon

I accidentally wore a tampon for approx 16-18 hours. I wore it at 1 pm and then wore a pad in the evening but did not take out the tampon. I took the tampon out the next day morning 9am. I am so worried about this. I took out my tampon and I saw that the pad was a bit stained and the tampon was fully red. Am I going to get TSS?!