Still waiting here too! DS is almost 14 months, nurses about 3-5x a day, and no AF yet. I certainly don't mind - I saved a bunch of money on formula and tampons, lol!
With DS1 I don't remember.
DS2 at 12 months.
DS3 at 3 months.
EBF all of my babies and coslept, too, so they were perma-latched at night.