Pregnant or jet lag?

Shalet
So I moved to Hawaii at the beginning of the month. I've read from many places that travel can affect your period if the time difference is significant. The time difference is only 3 hours and the flight was quick. I am currently 11 days late and had slight cramping for a few days there. I had sex during my fertile period but we went half and half with condoms(I know not smart but we didn't have good ones and neither of us was getting off) but he didn't come in me, it would have just been pre-cum. I can't go buy a pregnancy test because I live like 1 1/2 from stores and the ones out here are hella expensive.