Could I be prego?

Mindy

Hello ladies I’m 15 dpo the app says and for the past year or so I’ve had irregular periods so it’s possible that I’m not but today I’m feeling nauseous, tired, headache, which is a little out of the normal for me and AF according to the app is 2 days late. Do you guys think I could be feeling pregnancy symptoms or just a bug possibly? Curious to get your thoughts!