to get PG before your first AF...
....well we did. I fell pregnant with DD#3 when DD#2 qwas 9.5 months old....i was breastfeeding, on mini pill and no AF post partum. We caught the egg and whammo got pregnant. Looking back now, i did have an increase in CM around that time. All in all though i think it was more of a fluke, we DTD like twice that month !!

Dont be too disheartened....it can happen, my DD#2 was still on about 4-5 breastfeeds a day too....