It can take a while for things to return to normal after breastfeeding. It depends on how sensitive you are to the hormones. For some women, BF doesn't make such a difference because they are not that sensitive and can fall pregnant while still feeding. We are all different.

My AF only returned when DS was down to 2 feeds a day. We slowly weaned completely - it was a mutual decision, DS didn't mind because he didn't ask for it anymore and it was one less complication for me while TTC because I seem to be pretty sensitive to the hormones stopping AF.

Four months after weaning completely - I am UTD!

Good luck.
TICKLISH