Yes, it can change and most likely will.
You are only a few weeks out from the original Dday. You are probably still in shock and at times shutting down so you can function for yourself, your business and your child. This is what I do to make it through the day at times.
He can be crying to me pouring his heart out and I'm thinking to myself.. I don't give a fuck ab anything he is saying.
This is me exactly at times. I am only 2 months out from our Dday and most of the time I cannot even feel love for him.
It is that small glimmer that comes back now and then that keeps me here in the marriage. That has me considering R. And his remorse.
My best advice to you (and you can take it or leave it, because I am a mess most of the time too!), is to wait. If he is truly remorseful and truly wants to save your marriage, he will give you the time you need to work through your pain and let you chose the best path for you.
I am sorry you find yourself here. But I have found this site so helpful in finding some inner peace for myself. I hope you do to.
Sending you hugs.