When to announce??

I’m almost 7 weeks pregnant first ultrasound tomorrow. I’ve had two miscarriages and I have an 8 year old daughter. Our last pregnancy we told her at 7 weeks and then lost the baby at 8 weeks. I want to tell her so bad that we are pregnant she wants a sibling so badly but scared that we will have another miscarriage and she will be devastated. We have only told my mom waiting to tell the rest of the family till we tell our daughter.

When did you tell older children or family?