I think after Sooraj confession about baby,Chakor will shattered for a while,after that she might think the matter deeply.
She starts to doubt what Sooraj said is indeed true,because he is changed man now and how can he done wrong to Imli.
More than blind trust she knows him really well.
In the Sukor confession, there are mainly two things which got our attention that while Chakor did compare his first love and close the matter but Sooraj didn't do that.
Second thing they discussed about the rape attempt for the first time.
This is intentional from cvs's side for MU.
First one for making Chakor insecure and second one shows she knows him well.
She might done a DNA test of Imli,then it will prove Vivaan is the father.
Then the real issue starts,because Chakor feels that Sooraj still cares about Imli more and disregard of her love and feelings.
This will angered her more and may be she will distance herself from him and he will have to make some efforts to convince her why he lied and how much he loves her and more importantly he will have to clear Imli matter to get forgiveness from her.
I think story progression will be something like this that Chakor not believing Sooraj the father but his lie to protect Imli will make her angry and reason for their separation.