OPK test possible pregnant !!!

GF
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..  
​Thoughts??
opk test 

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