Early Result PT question

Hi all,

I have been TTC for a while now but unfortunately nothing's happening. For some reason I was feeling really good about this time, but when I took the PT this morning I only got one line. It is exactly 6 days before my projected period date. First Response Early Result Test.

We are going away on vacation this weekend and we are going somewhere where they have awesome beer. I was thinking of testing one more time tomorrow morning just to be sure, and then drinking on my vacation if it is clearly only one line.

Is this too risky? I know they have warnings about false negatives and what not... but how does that work? Should I just skip the drinking just in case? Also having a hard time justifying to my friends why I'm not drinking my favorite beer...

TIA!