Mine had a lot leading up to it.
In high school I was bullied everyday, most of the time I was hit, bashed, kicked, pushed over and I hid all this from mum, she knew I hated the breaks at school, yet loved the class time.
One day she didn't know I was in my room, walked in, I had my top off and she saw one big bruise that covered most of my upper body. I was in a lot of pain.
She dragged me to school, dragged me into the head office, to which she was told I needed to harden up.
She took me out of school that second.
Over the next few weeks I was at home a lot, always upset, down and she thought I might harm myself, the one thing she told me was that she would he with anything I needed, but I had to come to her.
One night we were watching TV, eating dinner and I said.
"Mum, I've been thinking about this since I was really little, I'm a girl inside, I can't explain it but I hate being a boy, I don't know what to do, but all I know is I feel like a girl".
She got up, hugged me, sat but down and said "we'll get through this" and went back to watching TV.
I remember going to bed that night with a smile on my face for the first time in my life.
The next day she started to get help on all this.
Found out about 10 years later that there was a transgirl in the Sydney office, who she had worked with a few times, the day after I came out she called her and asked what to do.