Lh getting higher ?

Britany

Okay so I am not 100% sure on my dates but I'm pretty sure I'm 11 dpo because I got a positive opk on the 3rd. My period is still 7 or 8 days away and I have gotten all negative hcg tests. This afternoon I took a lh test just to see and it is pretty positive to me... why is this ? Could it be positive because my period is due in 7 or 8 days ?