I have been doing some research, and I think my m/c may have been caused by a Luteal Phase Defect. Before I conceived, my LP was 9 days, which I have discovered an LP less than 10 can cause early m/c. I had never charted before, so I don't know what my LP was before, but based on my first pg (known date of LMP and known DOC), I am pretty sure it was around 13 days. The LPD must be caused by BFing, but I'm not ready to give that up. I am not going to TTC again until my cycles are straightened out, but I was just wondering if anyone has had experience with this and if you had any success in lengthening your LP. What did you use? Vitamin B6? Herbs? I want progesterone to be a last resort, since I am still BFing.