Can you miscarry and never bleed?

Cara • Expecting our first baby Jan 1st 2016! Married my best friend after 8 years together 10/10/14.
Not a chemical pregnancy but actually be pregnant and miscarry. Will there always be blood no matter what eventually? I'm just wondering in general because this is my first pregnancy and I don't know much about warning signs or how to know something is wrong. I haven't had any brown or red at all which since I don't know much I'm taking as a great sign. I'm 5 weeks 2 days. I didn't have implantation bleeding either.