He's 20m so he isn't exclusivity breastfeeding anymore. we r still nursing. and even if you exclusively breastfeed you can still conceive. @chichimango
If you are exclusively breastfeeding your baby making skills naturally shut down to provide for the baby you already have. If you're not exclusively breastfeeding then you can still conceive (no guarantee) because your body thinks you're weaning. Basically it's up to your hormone level and what your body is communicating to your organs.
We are on month 6 this month :/ not putting too much effort into tryinf, just trying to let it happen on its own. it's getting discouraging. son is 20m