Pregnancy symptoms?

I'm having pregnancy symptoms. I have sore breast, and nips. I'm really bloated then usual. I feel sick every day, i have some belly pain. I get really bad headaches and im more tires thek usual. My cervix is high, semi soft, and semi open. I took a pregnancy test and it came out negitive. Im suppose to get my period tomorrow and every time I felt my cervix the day before my cervix is low, hard, and open. Is there a chance that I am pregant?