has anyone noticed that their luteal phase got longer after a few months off of the pill?

mine started off around 9/10 days the first two months off of the pill. they have gotten slight longer since then, and it has been 4 months off of the pill. I took b6 for 1month, and it has lengthened to apx 12-13 days. not sure if it is my body adjusting from the pill or b6?