how to disable/enable checkbox in flutter based on data of previous page in flutter

I want to disable "are you pregnant" checkbox if I choose (gender)radio button as "male" in previous page named as Registration page. I used routes argument in main class to navigate through pages.

//Radio button ListTile(
                title: const Text('Male'),
                leading: Radio<Gender>(
                  value: Gender.Male,
                  groupValue: _gender,
                  onChanged: (Gender? value) {
                    setState(() {
                      var isMale = false;
                      _gender = value;
                      if (_gender == Gender.Male){
                        isMale= true;
                        CheckUpPage(gender: isMale);
                      }
                      
                    });
                  },
                ),
              ),

i am using enum class named Gender for radio button value argument. CheckBoxState.checkUpTitleList[0] = 'are you pregnant'

Widget buildSingleCheckBox(CheckBoxState checkBox) => CheckboxListTile(
    controlAffinity: ListTileControlAffinity.leading,
    activeColor: Theme.of(context).primaryColor,
    value: checkBox.value,
    title: Container(
      width: 300,
      padding: EdgeInsets.symmetric(vertical: 10, horizontal: 4),
      child: Text(
        checkBox.title,
        softWrap: true,
        overflow: TextOverflow.fade,
      ),
    ),
    
    onChanged: (checkBox.title == CheckBoxState.checkUpTitleList[0] && widget.gender == true)? null: (val){
      setState(() {
        checkBox.value =val!;
      });
    },
          
        
      
  );

I tried to do it this way but didn't worked.