1. Follow Him

Is he staying out late, or suddenly visiting the shop twice as often? If you've spotted something, borrow a friends car or rent one, and follow him. Remember to drive carefully and stay out of sight, and see where he goes. If he goes where he said he was going, you can be reassured that he probably isn't cheating. If he doesn't, you'll know to start looking a bit deeper.

2. Check Bank Statements

Got a joint account? Look for transactions that you don't recognize. Things can be obvious, such as lingerie or hotel bills, or more subtle, such as much more petrol then usual. Photocopy anything suspicious, and keep it in a safe place.

3. Check His Phone

This is dangerous, as it will be easy to get caught and he'll know you are on to him, or feel very upset if he is innocent. If its possible, check to see his messages and call history. The same number repeated isn't good, and no call history or messages at all is suspicious. Any numbers you do find, make a note of.

4. Call the Number

Whether its an old friend, someone on facebook or you got it from his phone, call any suspicious numbers and see who answers. Remember to make sure your number is private, and to have a reason for calling. Pretend to offer a service, or be looking for someone, or just wish them a nice day.

5. Be Awake!

Notice how he behaves. Is he off sex, or are you subconsciously pushing him away? Does he eat with you, and still treat you the same? Is there any changes in behaviour?

6. Keep a Record!

Write down how you feel, dates and times that he is out, photo copy phone records, bank statements and love letters. Put everything back as it should be and wait.

7. Confront Him

You should have evidence by now, so sit down and look through it all. Consider consulting a good friend, and asking for a unbiased opinion. If its likely to just be in your head, try to work on your confidence and trust. If its likely he is cheating on you, confront him, and hear what he has to say.

Remember that if he catches you spying on him, or looking through his things, he could feel very upset and that might spell the end of your relationship.

Be sure that you aren't looking for something that isn't there, and if you decide to confront him, decide what you want first and go in with a clean head and a smile.

That said, stand up for yourself and remember that if he is cheating, he doesn't deserve you. Good luck! Have you got a tip to catch a cheat? Please tell me!

Photo Credit: flickr.com