Hire a private investigator using funds your husband will not notice are missing. That's what I did and lo and behold, my husband was indeed cheating on me. We are now in the process of getting divorced. If you're worried he's being unfaithful, it's likely that he is in fact cheating on you. It's your subconcious mind telling you something isn't right. Make sure you don't tip him off that you're suspicious. You have to play it cool so that he doesn't get more careful in covering his tracks. Be prepared for the truth. When I finally found out the truth, it hit me like a ton of bricks. Good luck.