My ds is 4 months old now and I am exclusively breastfeeding very happily after a shaky start! He feeds about every 3 hours during the day and wakes up for one feed at night at about 3 or 4am, so it's not like I'm feeding him all that frequently, but AF has not returned! Dh and I decided a while back that we wanted to have 2 babies close together, for various reasons (including financial reasons), so when can I expect AF to return?? I really don't want to put ds on formula when I start weaning him but am starting to think I might have to if I want to become pg again. Does this make sense? Am I being really selfish?