May or may not be pregnant and scared!!!

It has been 33 days since my last cycle and i am freaking out. I took a clear blue digital test last week and it was negative i took one Saturday as soon as i got up and it was neg. Im not very regular but i am never this late. I am quite stressed over my graduation, moving, new jobs, and college but i don't think it's normal to be this late. I don't have time to go to the doctors so i was wondering if this has ever happened to anyone else or if you have suggestions. Please help!