February 2022 due date

Kia

Ok, I’m confused. The dr said my due date is Feb 25 & I’m 15 weeks 5 days rn & the first day of my last cycle was June 2nd. Does that add up right to you guys??👀 because when I go on apps and put in my due date it’s saying I’m 16 weeks 5 days according to my due date. Is it because I’m measuring a week ahead or what??