scared of being pregnant...

so, my period is a week late. not that unusual for me, but I haven't exactly been on time with my pills this past month. I'm worried that I might be pregnant. I know that if my period doesn't start soon, I should take a pregnancy test to find out but I'm really scared of what the answer might be. my fiancee and I live with his mom, his grandma, his 2 brothers and a brothers pregnant girlfriend. we're broke, even though we both work. I'm scared and I don't know what to do... UPDATE: I am not pregnant. my period was just obnoxiously late. I will however, be more diligent about taking my pills and am looking into getting shots instead