please comment asap

Two days ago I was supposed to start my cycle & on that day I had only one faint drop of blood come out. 2 weeks prior to my start date I've been having a feeling I'm pregnant due to a dream about me having a baby (which obviously made me over analyze everything & give me A LOT of anxiety) but now I'm just a little anxious & want some opinions. I've felt like I've been have pms but all the symptoms I've had are mostly related to pregnancy. Thoughts???