cimorene

I took a pregnancy test yesterday, and it was negative. I took the other one today, but wasn't expecting anything different.
But it was positive...which really confused the shit out of me.
So I went to the nearest pharmacist and asked how accurate it was. She said 99%, it's extremely rare to have a false negative.
I asked why it would be negative yesterday, and positive today. She said that because of the fact that it would be so early in the pregnancy, that today might be the first day my hormones have built up enough to show positive...
I don't know what to do...I just don't.
And I have a final today!!!!