Your CP would move toward fertile (high, soft, open) as your body attempts to ovulate. This could happen many times before you actually do manage to O. About 2/3 of women will O prior to their first pp bleed, but only about half of those (so 1/3 total) will have a fertile length LP. But depending on your genes, breastfeeding, your baby's needs, environmental factors, etc. it could happen soon or it could be over a year or more before this starts to happen. Personally I would focus more on CF changes as an indicator of returning fertility. You can check out the CTA thread for more pointers on charting your cycles prior to your first ppAF. There are a few ladies that use the CBE fertility monitor and the MM to catch that first O.
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