Pregnancy symptoms?!

Savannah

What’s the absolute earliest you can experience pregnancy symptoms?! I am 8 DPO today. I had some slight cramping the past 1-2 days. For the last probably 24 hours maybe everything has been making me nauseous.. every-time I eat I get nauseous and I’m currently writing this at 3am because I’ve been up for an hour with nausea and cannot go back to sleep.