Early pregnancy symptoms??

Desiree • TTC #1 with my wonderful husband!
Okay so for the past 3-4 days (I'm 8 dpo), I've been a little bit nauseous in the morning, have had terrible lower back pain, extremely swollen and tender breasts and super oily skin (I have a light form of psoriasis so this is VERY unusual). I just got off the pill a month ago. 
Are these early signs of pregnancy? I eat a mostly clean diet and haven't had any of these symptoms before. I've been so uncomfortable 😭😭