The perfect age to have your first child?

The Perfect age to have your first child, My boyfriend wants to wait & doesn't want to start having children till age 35. To me I think thats a little to late to be having your first child, I'd rather have my first child at 25. My Grandma lost the ability to have children at the age of 35 & my mom at the age of 42 due to menopause. So tell me what you think is the perfect age to have a baby?