I don't know what to do or think

Freaking out, 
2 days ago I was supposed to get my period and I didn't whatever right, yesterday me and my person didn't have sex but he was about to put it in, i stopped him, but I'm afraid that he might have had his cum or Precum on his fingers and fingered me after. He said he didn't Precum or anything. And I'm afraid that something might happen. Period still hasn't arrived. 
Please respond! 

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