help I need opinions

Faith • You can call me nova I'm 19 years old
So I need help idk what's wrong but I haven't had my period yet my last period was aug 25 an today is oct 2 so I'm 6 days late sometimes my period is off but this time it feels different I just need opinions please I don't know if I should take a pregnancy test or not if it's to early for that or not my boobs are very sentive an I've been tired a lot an I've been eating more than I do I haven't got sick or anything an I know this is awkward but I've been pooping a lot also