If Anurag doubts Prerna (i see some members raising the point that Anurag will think it as Bajaj's child) after listening to the video it would be totally an illogical track. In the video that accidentally got recorded Prerna clearly mentions to Bajaj no one is important for her and Anurag is her 1st priority and she loves only him .After listening to that why should Anurag doubt Prerna. I know many fans here want Prerna and Bajaj together but on what basis.
And he has every right to question Prerna as to why she hid this fact to him. i don't think he will do anything beyond that