What Causes Bleeding From The Sclera While On Coumadin?

Am on Coumadin and three blood pressure meds Coumadin 4 or 6 mg on different nights of the week. last Inr was on March 17th .... 2.0 My goal is between 2 -3 daily. Should I skip my Coumadin tonight since I have just noticed bleeding in the white of one of my eyes. Or should I stick to my schedule? Thanks. Mrs Jv