Anyone get a bfn at 8dpo or earlier and get a bfp after?

Carina • 25 years young. baby #1 born April 11th 2017❤️
I took a test at 8dpo and got a BFN. I've been cramping since ovulation, my breasts are sore, I'm tired and gassy, and I just threw up after having ONE alcoholic drink. Since I got a bfn I figured I'd have one with my coworkers. Any chance I can get a BFP later this week?