Pregnant? Help!!!!

So I recently broke up with my boyfriend, and we did STUFF without putting it in (you know what i mean) and I am four weeks late for my period... not a good sign. I am only 14, so I don't have the resources to get a test or go to a doctor by myself. I don't want to tell him and scare him if I'm not, but I have no way of knowing if I am pregnant or not. And I can't rely on him to get a test or anything because we broke up and he is the kind of person who would tell people and call me a slut. Help?!!