AF has only just returned for me, the last couple months. Although it is not regular at all and it's spotting/bleeding all over the place. jack is almost 17 months, but I am still Breastfeeding and also have the Mirena IUD in which can also affect AF.
I actually just had Blood Tests (hormone tests) as I was a little concerned about all the random spotting etc...The Doctor told me today that I have just had a "really good ovulation". Whatever that means, LOL.