Opening up to my mom/trigger warning

So my mom has been divorced from my father for about a year now and he’s pretty much disappeared with a few random phone calls here and there. I’m 22 now, from 8-16 years old I was sexually abused by my father; but now I feel I’m ready to open up to my mom about it. She was being emotionally abused and manipulated by my father as we all were and now that she’s had time to clear herself from him she has her suspicions on how he acted with me. I want to tell her but I don’t want to crush her emotionally like this. I’m fully healed from the traumas and have completely freed myself from my father, I don’t know if I’m making the correct choice in this matter or if I should just let her be ignorant to the matter for her emotional health.

Edit to add: I have moved on from it fully, it truly doesn’t affect me no more and I only began to think of it again when my mom started asking questions. I have a wonderful husband who does know my past and has helped me move on and heal when I was 18-19 years old; we also have our son who is a year old and helped me fully move passed it. She’s started to get into the dating scene again but not much luck in finding a guy who wants something serious that catches her eye, but she’s in no rush to be in a relationship again.