pregnancy test

so, I think I might be 2 weeks pregnant. my boyfriend busted in me for the first time about 2 weeks ago. should I wait until I'm about to start my period to take a test? I'm just so anxious and I want to take a test but I don't want to upset myself if it comes back negative because it's too early. if I'm not pregnant, what are some tips to help me be more fertile? positions? whatever will help, I'm just ready to have a baby.