OPK test possible pregnant !!!

Has anyone used an OPK to help in seeing if you could possible be pregnant, I saw a vedio on you tube and  it seems to show a almost positive OPK and they test on a pregnancy test and it positive.. Wondering of this is possible wrong ?
​I got a pretty postive OPK this morning but I'm scared to test! I'm 11 DPO today..  
​OPK test