I had a short luteal phase when ttc with our first. After 3 months of charting and no luck I did some investigating and found that it can be progesterone related. As a natural method to helping this issue I began taking Vitamin B6 pills daily for my 4 cycle PBC and I got pregnant! Our little man is now 11 months.
I've just started taking Vitamin B6-100mg around mid cycle last month, May I ask how many mg did you take and how long did it take to start lengthen your LP? I am very curious and anxious. My LP is also very short that I actually start spotting 4-5 DPO. It's really bothering me.