Miscarriage at home? is it easy?

im 15 and might be pregnant; i cant get a test bc my parents go with me everywhere i cant even leave the house; if i do have a misscariage at home do i have to go to the doctor; and whats the easies way to cause one; i talk to my bf bout keeping it but i cant im 15 his also 15 and we dont have jobs so i dnt want to bring it to earth when we wont have money for it; and if i do keep it then i will be kicked out the house; and we did use a condom but it broke;im sopost to start my period this week on the 11 and idk if im goin to i cramp before i start but i have not cramped yet; my stomach has been hurting like someone hit me; i have been hitting it tho and kno it kills; can that hurt me? its 4am and i cant get any sleep.i have been having mood swings and in the mood for things like these past two days i have been in the mood for gummy worms and coke and beef jerky. i need help. and i need someone who has been there before; and plz dont be a b*tch bout it;]