Matthew, Mark, and Luke...all quoted Jesus on the topic of 'marriage' in heaven....and unanimously declared that He said there IS NO marriage there. Given that (at least on earth, and presumably there too) God's consistent order is for conception to occur within marriage, we can surmise that we will not have progeny there.
I agree with chaplainbob...in that for a number of years now...I've said that I suspect that EACH one of us....will undergo a dramatic shift in our 'theology'....one microsecond after 'passing over'....which is to say, that we have very little knowledge of just what that state is like, what we'll be like, except that it's supposed to be better than here.
As well, many here on earth...haven't exactly found parentage/children to be quite the 'blessing' it's been touted as being....so I suspect that God will have much better things for us.
Blessings,