Hi there :)
So sorry that you have this decision hanging over you luv.
I don't know if I could help at all but I know what you mean. Nobody could tell me at the time if one lot of ivf ( stimulation) would promote cancer growth. They either ignored it and knew that it was the only chance I had to have one child, or think the risk is minimal.
If I had one child I may not have tried for another. It's tough. I Just know that I want maximum % chance of survival. Perhaps ask the fertility specialist or oncologist what they think the difference is in recurrence and survival if you do have a round of Ivf? May I ask your age luv (I was 31 at diagnosis, now 34 & Hormone positive but her 2 neg). I like your attitude about knowing that it's important to your daughter to have a mother and not another sibling - and I wish there was an easy answer. I'm an only child and so is my mum- and I really need my mum xxx