HELP! Is my husband cheating or am I being paranoid?

This morning i was doing the washing and as i was puting one of his suits in the machine he ran in and told me he had left something in the pocket so i put my hand in and felt something soft but wasn't hard i originally thought a tissue or something, but he then pushed me aside and grabbed the coat he pulled whatever it was out and put it in his own pocket. i asked what it was he said it was his mobile phone, then to my surprise after he left for work i found that he had left his mobile charging in the kitchen and it had been there all night charging! i'm so scared i don't want to ask in case i'm just being paranoid. Or I could be right and i will not be humiliated like that, does this sound paranoid?