OK so last month I didn't get my period. a few weeks before I was suppose to get it, I have unprotected sex. still haven't had a period, my breast hurt, I have been having morning sickness. I took a home test ans it came up negative then I went to get a blood test done and that was negative to. if I am pregnant, I'm almost 5 weeks. why am I feeling like this if I'm not pregnant? is there a chance I could be but its to early to tell? someone please help me!