I BF until 8 months then switched to FF, and only got AF back about 5-6 months AFTER that...and now hanging around for the second one to appear - which just seems so strange, coz I always wanted it to go away, and now I'm wanting it to come back!

As CM said, everyone is different.....

If it hasn't returned by 6 months, go and see if you can get a blood test to check your hormones and stuff.