I'm having a ton of pregnancy symptoms (nausea, 2 weeks late, enlarged and tender breasts, mood swings, etc), and have taken a few home pregnancy test, a few positive a couple negative. i had a blood test and the hcg was low. do you think i'm pregnan?

Your low HCG is a pretty accurate test and suggests absence of preg. Who ordered it? If it was your OB or MD they should have examined you wit a follow up after your blood test. Without that the best I can say is that you are not pregnant.

Knowing how "low" your blood betaHCG level was would be quite helpful. Consulting an MFM specialist, a credentialed gyn sonographer and or a Gyn Oncologist may be the best way to get answers to your questions and explain your symptoms.