So, it’s not about how many (and it is). It’s about you and your wife being on the same page about supporting her through anything and everything, including taking responsibility for their homeschooling and spending dad time and being a good steward with what you’ve been given (spouse, children, talents, time, finances). This is just one overall aspect.
So if she feels supported and is on board with how it’s going with your first child she may warm to the idea. I would suggest not saying how great it would be to have more children. Nurture her, take care of her. Romance her and keep dating her. Pledge to yourself to continue working on your relationship in all times and circumstances. Plan special little overnights once or twice a year that just you two go on. She needs that. And she will love you for seeing that she needs that. ❤️
So, love grows. As it grows there are more children, Lord willing. Those are my first couple of thoughts