2 weeks late!

Brianna
Soooo my husband and I have been having unprotected sex, and I'm not on birth control. My last period was 12-1-16, so that makes me 2 weeks late! I've been having tons of pregnancy symptoms: nausea, fatigue, sore breasts, crying randomly, headaches etc. I took a HPT last week and it came back negative. I was soooo freaking upset, but my period still hasn't came. Could I be pregnant still? I want baby #2 soooooo bad!