Early pregnancy symptoms

Hello ladies, I am so confused with some symptoms I am facing these days. My AF is due in 2 days and I don't want to test until that day to be 100% sure but I am having severe headaches, tender breasts, lil pelvic pain and lower back ache..Have anyone of u experienced this in early pregnancy or it can be just PMS? I am being positive and will wait for BFP on my due date..