Wondering??

Two appointments back, I was around 30 weeks well that's what I thought, since I was keeping track, and well the point is my doctor gave me the due date which is August 2nd, and well when I went to my appointment at 30 weeks she said I was actually 31weeks or 32 weeks honestly I don't remember so well , butttt, what I'm trying to ask, today I'm exactly 36w pregnant but My doctor still has me due for August 2nd, but my app still tells me I'm due for the 26 of July. Is that ok? I get so confused 😫 it's like a week apart I believe is that all ok still?