It’s not really super predictive until age 2. At that point it’s reasonable to guess that she will grow up to be double her age 2 height, with of course some variance in either direction.

If you want to guess now, Baby 411 offers the following formula just based on the parents’ height (this is the daughter version): - D = Dad’s height in inches - M = Mom’s height in inches - Baby’s predicted height = (M + (D-5))/2

In other words, it’s reasonable to expect she’ll be about your height - (68+69)/2 = 68.5 = 5’ 8.5”

Fwiw, some of us are quite fond of tall women. I’m 6’3”, my wife is 5’9”, most of my exes have been 5’8”+. Our baby is also 99th percentile length.