according to the better health vic website:
A parent who was born with a cleft has a two per cent chance of passing on the defect to their child.
Maybe the chance of subsequent children having the same condition increases if the first child does?

They do check for it at the morph scan/us and most of the bigger hospitals would probably offer genetic counselling if you were interested, or you could contact cleftpals in your state, as they'd have accurate info on the chances of inheriting it etc.

A friend of mine has 2 boys who inheritied this condition, both are perfectly fine, very popular with their peers etc, and she breastfed both of them for 6 months!