Can i be late or prego?

I had my period last month sept13 for only 2 days. I bled a little to where I only used 1 pad. I was supposed to get my period Oct 11 Friday or saturday Oct 12 but still nothing...I don't want to take a test and it be negative. I've been TTC since my last miscarage in April,2014..and I just get negative results. What do you ladies think?