SB - are you going to take vitamin B6 this month?
I was considering taking it as well. This is only my third month ttc, and second month using opks, so I am not really sure how long my regular luteal phase is.
My cycle was shorter last month, normally it is about 31 days, but last month it was 29 days and as I ovulated on day 16, this gave me a luteal phase of 12 days. Now, I don't know if this is normal for me or not (as it was the first month of OPKs).
June - 31 days, July - 31 days, August - 33 days, September - 31 days, October - 29 days. Occasionally, I get light spotting a day or two (never more than that) before AF - not last month. Could spotting be a sign of progesterone levels falling?
So, as I ovulated on day 14 this month (again, earlier than before??? - I used to be regular as clockwork). I am wondering whether or not I will have a 12 or 14 day luteal phase.
Sorry for the long, long, long explanation!