I just got my first PP cycle when my daughter was almost 13 mos old as well. I happened to catch my first ovulation by taking OPKs...I have been taking them sporadically since she was about 6 months old.
To give you an idea, my luteal phase from that cycle was *4 days* which to me is insane, but is supposed to be totally normal. My period was pretty normal, maybe even lighter than normal, which I guess if you only have 4 days to build up lining is to be expected.
This cycle, I am ovulating today, which is **CD 31!!** I used to ovulate on day 14 or 15, so this is kinda weird.
So yeah, I'd say pretty much anything is to be expected. We use FAM so it has been a bit confusing, but no slip-ups so far. I will admit I took a pregnancy test yesterday, before I got the positive on the OPK. I use to have very short cycles (24 or 25 days total) so going 30 days without a period made me paranoid.
wife to DH,
and mama to Lillian
(7/09) , Daniel