Don't think the male has many fry in his cave, will be lucky if i there is five of them, but at least this male is getting it right

And this male was the sub dominant male in the big tank before i split up my zebras into three smaller tanks !
There is three zebras in a 2ft * 1.5ft * 15 inches high tank, the male, a female and possibly another female (i assume this because she is not as big as the two definite males, and is over three years old).
I have noticed that the two females are squabbling a bit, and have only noticed this in the past week.
Will a female that has laid eggs make it more territorial than usual ?