NFP and breastfeeding

Christine • Mama to a 6 year old girl, 1 year old boy, and pregnant with #3 due 2/3/20💕

Does anyone here use natural family planning as their method of birth control? I’m wondering how that works if I’m exclusively breastfeeding and don’t get my period since I know you can get your period right away or not for a year plus! My six week appt is coming up so I want to have a plan for when we get back to it since hubby and I only use NFP for BC! Any advice would be so appreciated!!