Just a word of warning, if I may.
First, if your tank doesn't have many hiding places, then you may not actually see any fry, as they may all be eaten.
Secondly, if your tank does have sufficient hding places, then you may have a mjaor problem. You have 2 pregnant females by your own admission, so that's 60+ fry every month or so. Do you have the means to house all of these fish, or a dependable destination that will happily take large quantities of home-bred fry on a regular basis?