No. It likely won’t be a judge, it’ll be a magistrate and their decision will be informed by CAFCASS. You can discuss with them, but unless you’re suddenly revealing new information (and they will ask why you’re mucking them around) then they will say they have made their decision based on the evidence supplied by all parties.
I personally don’t feel magistrates should be dealing with family cases, given they have no legal qualification or training. I was completely shocked when my barrister told me they are ‘upstanding members of the community’ e.g. doctors and dentists. I know they take legal direction but they aren’t trained.