Could I just have ruined my maybe baby??

So I’m only 9dpo but I have a good feeling about this month ya know? Well I just fell down my stairs. I’m not sure how I got off balance and my sock slipped. Anyways I fell and landed on my butt and back. I’m not sure if my head hit or not. I feel ok I just got dizzy and nauseous after but I laid down for a minute and it’s passing. Anyway could this have just ruined my hances at being pregnant this month?!?