Baby dreamtime - like you say, everyone is different and you don't know what your body is going to be like.
My experience was that it took longer for AF to return when I was BF twins than when i was BF a single baby. I didn't have AF return after my twins were born until they were 12 months old and by that stage I was only feeding them 1xmorning feed and 1xbedtime feed. My experience both times has been that I can't start TTC until I have weaned completely. I did wean my twins in order to TTC and here I am, 15 months on still TTC, so if I had my time again, I would probably just have kept BFing since I am no closer to another baby now than I was over a year ago. I just think you should ask yourself, if it takes a long time for you to get another BFP, will you wish you had just held off on the weaning? and then you will know what you should do.

good luck, I hope you get BFP very fast this time around.