No, it is not OK for you to wear the 2 week contact lenses for more than 2 weeks. As we know, every contact lenses has its own expired time. You'd better use it before the expired time. Or else, the water content of the contact lenses will not provide you the enough water. You may get dry at the eyes. In addition, your eyes may get infection easily. As we know, the direct touched contact lenses will provide you the chance of breathing. If the contact lenses are used over the expired time, the water content will be decreased which will make your eyes feel dry. Your eyes may get high possibility of getting infection and inflammation.