Does Cramping,nausea And Frequent Urination Indicate Pregnancy?

ok so my last period was right before Thanksgiving and still today I've not gotten it. My breasts hurt off and on, mild cramping, nausea, frequent urination same ole same ole. I had a urine test done at the hospital about a month ago and the result was neg. Took one this afternoon same thing. Is there any chance that I may really be pregnant?