Sorry if tmi

Laura

So hubby and I are ttc this is our 4th cycle trying. I am 6 dpo as of today. We had sex around 12:30 am and I have been dizzy and nauseous ever since. If I move my head, sit up, or stand the entire room spins and I feel like throwing up. Is it too early to think this could be an early symptom of pregnancy or would a fertilized egg not have even implanted yet? I have had a cold/ bronchitis for about a week.