I need to hear others experiences

I’m suppose to start my period on Tuesday, for approximately a week and half now I have felt so sick, back has been cramping, lower stomach cramping . I initially thought I’m just coming down with a general sickness. Until the other night, we went to dinner and I felt so sick to the point I thought I was going to just throw up. We went home and I took a pregnancy test (6 days before my period) and it was negative. Fast forwards to last night I was eating a snack mix (rye chips, pretzels, etc) and I had maybe a handful before I had to put them away Bc they made me so nauseous. Could it be possible I am pregnant and it’s not just a sickness with it lasting this long? Can I hear everyone stories? Did anyone have same symptoms with a positive test?

Edit to add so maybe the dates and all can be of help with this ... I am nauseous, light cramping in my lower back and stomach (mostly back), sore breasts, headache, with thin milky like discharge (tmi- I’m sorry)