Losing my mind some1 plz help me badly?

ok heres my problem i been with this girl 4 a while now in the past she calimed that she was pregant 2wice had a 2 miscarriages b4 now shes been calmin shes due this month everytime she mentions something with the baby its sound very fishy i spoke 2 my friends that have kids and told their experiences and it dosent add up so what i have plan 2 do is next time i go see her im a tell her to take the home pregnancy test if she refuses than im just umoing that shes been lyin to me the wholetime what are some best home products that well tell my the most accurate answers bc i cant do this ne 1 im already dying to end it with her i have a feelin she may refuse to take them if thats the case im uming that she dosent want to take them thats all bc she dosent want to admit shes really pregnant plzzz help me not even vodka and st john worts can help me on this 1