9. Change your sleeping pattern
Some boyfriends wait for you to sleep before they can call or chat with their other girls. Make sure you change your sleeping habit.
You can pretend to be sleeping and wake up at odd hours.
If they’re in the act of making secret calls, this can be a way of catching him.
10. Check their trash can
One way you can catch your cheating boyfriend is to check his garbage can when you pay him a visit. Look out for used tissues. He could have used it to clean himself or the girl’s fluid when they slept together.
And also, it could be that he dispose off the condom they used. Just check there sometimes and you might find a piece of evidence.