How to eliminate my desire to have a baby at 17?

I ask because I have a boyfriend and I love him and he tells me he wants a baby, to be the fruit of our love and I am very maternal and I want to feel what it feels like to be a mother and have the little fruit of our love inside me.
It is an idea that makes me think of beautiful things, but the thing is that neither he nor I have economic stability and we still live with our parents, so the idea cannot be realized.

but I really love my boyfriend and I want to make him happy!
I'm obsessive with my ideas and I can't get the idea of ​​getting pregnant out of my mind
How to eliminate my desire to have a baby at 17?
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