6 DPO - could this be symptoms?

Amber

Hey, my husband & I have been trying for 5 months. I am 6 DPO today & woke up nauseous this morning & then had a headache join later. I get particularly nauseated when standing up. Could this be symptoms this early on or just hormones? I have also had sore breast’s for the past 2 days. Don’t want to be too anxious but still hopeful!