You are in a relationship
You want to take it further
But She seems not to be ready and you don't have enough courage to end the relationship.

Breathe in!!

Just start talking about Babies. How much you love Babies and how you cannot wait to have seven of them in the next eight years.

When you go shopping and you spot a Woman carrying a Baby, leave her and go to the Woman carrying the Baby and show some love. Spend a little more time playing with the Baby.

Apologise later but tell her you can't help it.

One day, She will just leave you. Voluntarily.

Then you can move on.