I am separated from my ex. She has my son living with her. We came to an agreement that I get every second weekend and it was going fine until i wanted to have him over Christmas. It took ages to reach an agreement which we both agreed to on SMS. Now for reasons unknown, she won't let me have him on the agreed days. Can I go to her place and have her hand over my child for the agreed time frame? Can she call the police? Does she have the right under Family Law to decide not to let me see him when we agreed? There are no papers in place. Can I take my son on the agreed days, even though my ex-partner changed her mind? We agreed through SMS.