2 apps telling me 2 things.

My due date is 15th July. Am I 4 or 5 weeks?

Last period was 2nd October. Ovulation on 17th October.

I found the problem. The App calculated a total gestation age of 287 instead of 280. Pushing me a week later (see tiny numbers in the photo below) must be a technical problem. Thanks everyone for your help. I go in next week to confirm EDD, but I used multiple websites and apps and my edd could be anything between 9th and 11th July. (My cycle is usually 28 but this month and the previous, it was 30 days so I didn't ovulate on day 14 but Day 16 and am not sure which cycle to use because this month I didnt get a period to know which length I could have had thus the range)