Pregnant?

I have had two positive and two negative at home tests. I have also had many symptoms including nausea, lightheaded/dizziness, sore breasts, headaches, and fatigue. I am now only 3 days late and I took the positive tests about a week and a half - two weeks ago. The negative tests were taken a few days after. The symptoms have not subsided and my boyfriend is pretty sure I am pregnant. I am planning on going to get a bloodtest done in a few days but bf wanted to see if my period would come before we spent the money. So far nothing. Any opinions would be greatly appriciated.