“Am I pregnant”

Hello! I am trying for a baby, I am 18. My last period started on September 2nd, had sex on the 18th. And haven't had my period since. I usually have regular 28 day cycles and I'm now on day 59. I have taken several pregnancy tests and they are all negative. I can't go to the doctors for a blood test due to my tight schedule. I would now be 6 weeks pregnant and I would like to make the right choices for my baby, knowing if I were pregnant or not would help. A few of my symptoms are (sore breasts/ slightly growing breasts, sore everywhere, cramps, nauseous, Extremely fatigued, thick white discharge, extreme mood swings, etc) I have done research about everything I am saying and I'm getting to many different results. Could I be hallucinating my symptoms? Could I not be pregnant? Please help.