breastfeeding mom TTC!

Emily
My first born is now 9 months old and my husband and I have been been TTC for 3 cycles now. I've had AF pretty much since after my son was born normally every month and have only breastfed him ever since. Some ladies don't get AF for a while and I did . I am still breastfeeding him and TTC... it took us a little  to get pregnant with my first born but I'm worried since I'm breastfeeding that may be causing me not to get pregnant. Anyone else breastfeeding and TTC?