What did your LP used to be before these longer ones (this is the word you're looking for, not "late").
15 days in October is pretty average, the 20 and 21 are a little longer, but that makes two cycles that were off a little, so I personally wouldn't look too much into it.
I know it will be a pain in the arse to input past data into FF, but I highly suggest you put your temps, OPKs and periods in so we have something to look at (for now, and also for if you have questions in the future and need a chart stalk). FF also has a free phone app.