How in the world am I pregnant?

Tiffani
We went on vacation to Disney World last month. 
I swear to you....we didn't try. We've been trying for two years and we didn't try. We couldn't try; I was ovulating during our trip. 
I had my freaking period January 5th! A totally, 100% normal period. 
Today, I had some light bleeding and pain, so I went to a doctor thinking I had a UTI. 
I'm 6 weeks pregnant. 
I don't know how to take this.