What do you think?

About almost two weeks ago I went to visit my boyfriend who’s is stationed away due to Military. While I visited we had unprotected sex and now I’m worried I may be pregnant (of course, stupid) I started cramping yesterday and I thought I was going to get my period soon but it’s still pretty early. I started googling and I saw a lot of mentions of implantation cramping that usually happens 6-12 days after conceiving. Should I buy a pregnancy test already or is it too early? I shouldn’t be getting a period for another week and a half but I’m freaking out a bit. What do you guys think?