I'm in shock! Is it possible the test is wrong

Ladies, I found out I'm 8 weeks pregnant today. 
I'm
In complete shock I was shaky and speechless
Is it possible that it could be a negative if I take another tomorrow? 
I took a ovulation test this morning and it was unclear .... Then when I came home with really bad cramps my fiancé told me to take "the test"
And here's what I got ....
I'm like in tears. :,) 

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