Long cycles?

Any ladies who have long cycles 35+ days long.... How did that effect your due date? Just wondering if you have long cycles and it led to your due date being changed. My cycles are 35-36 days long and I’m curious if they will still go off my LMP. This is baby #3 for us so I know they do a dating scan to see how baby is measuring but with my previous 2, my cycles were only 29-30 days long so my LMP matched both babies’ measurements.