i suppose you could say it took DH and i a year! 5 months of NTNP followed by seven months of actively TTC - i'd had various issues with chronically painful periods (tested for endo etc) and for one reason or another my cycle went up the chute as soon as DH and i started TTC!
because my cycles were so long and unpredictable i went down the temping route and also started acu in jan of this year. basically, i ovulated 4 times over a six/seven month period which is a bit crap but at least i was oving! i am sure the acu made the biggest difference, alongside various small lifestyle changes e.g. diet stuff, cut out alcohol completely etc. made sure DH was also on a decent multi vit and mineral suppliment and eating well. the temping was very useful and the month i fell pregnant i had also used an ovulation test kit. this alongside checking cm and so on let me know i was super fertile! btw - cm is essential in the process of conceiving....
good luck x