Please answer!

Harley

Okay ladies, my SO and I had sex during my fertile peak. I'm sure its too early to test because its only been about a week since my peak so I doubt it will show up this soon. AF is due May 25th.

Now here's where we have a problem...my 21st birthday is Wednesday and I am hoping to celebrate it like any other 21 year old would. Would drinking alcohol without knowing for sure if I'm pregnant affect anything? I want to test before but I'm not sure if it would show up if I am.