Weird dreams and pregnancy?

I have been having crazy dreams lately, and I've heard it's an early symptom for some people. Has anyone ever had them during early stages? My boobs are killing me, but I went down a slip-n-slide for the fourth and don't know if that's why they hurt or if I'm prego. I haven't taken a test and haven't missed my period yet, although last month it was light and like old period blood the first day and red the next and lasted for two days, then got really nauseous and have been having bad headaches. I'll take a test, just wanna get ya'lls opinions. Thanks lady's!