Panicked on the phone to dr

I called to schedule a first appointment. I’m I think 5w3d. On the phone, the lady asked when my last period was. When I’m on the phone my brain turns completely off and melts and I lose all ability to think. Anyway I couldn’t remember off my head so I opened my period tracker app and told her the number in the red circle indicating a period, the last recorded one being in October. As I said it it felt wrong, but I dismissed that feeling bc it was in the app and I’m very careful about tracking things bc we’ve been trying so long. Anyway after the call I opened the app back up and realized once I switched to the pregnancy version of it it changed the period indicator of my actual last period to mark day 1 of pregnancy, so I didn’t realize I’d given the drs office the wrong information. I know in the grand scheme of things that this is not the end of the world, but I am absolutely spiraling about this. I feel like such an idiot and I think I should call back but the system is so confusing I would not get the same person and I’m so terrible on the phone. The online portal is down so I can’t use their online stuff. Do I just go to the appointment on Friday and explain that I’m 5w, not 9? I probably sound very dramatic rn but I’m so worried that I’ve ruined everything