As 2 weeks late, now having period like symptoms?

I'm like clockwork with my period. Only odd thing I noticed lately is a loss of appetite and feeling queasy often and having a stronger smell. I took a test a week after it was late & got a bfn. I don't trust those tests anyways. Today I'm 2 weeks late and under my arms are sore (my bodys way of telling me my are sore) and getting very easily upset which usually happens when i'm pmnsing. My question is, should i or should i not rule pregnancy out?