Anyone supplement with B6?

My cycle is regular but due to an mmc in September and a slightly short luteal phase (as low as 11 days) I decided to start taking it this cycle after O. (In efforts of not delaying it as I had read a few times that it had caused women to ovulate late.) Currently AF is expected today and I've been having pregnancy symptoms since O but tested BFN on 11dpo. I'd like to think AF not coming today would be a great sign but I'm worried the B6 (50mg) is delaying the onset of next cycle in the case I'm not pregnant. Any insight??