How do I stop wanting a baby ?

I am 17, I will be 18 in 2 months. For the past year I have such bad baby fever, and can not stop thinking about wanting a baby. I know how hard it is, and stressful. But I try doing things to try and get it off my mind. I work to try and get it off my mind, but even at work I think about it. I want to try and at least wait until I am moved out of my moms house on my own with my boyfriend. Right now we live together at my moms house. I’ve tried everything to stop thinking about it but I’ve always felt like my purpose in life was to be a mother. And it’s not just “baby fever” like I have researched the ins and out of pregnancy and babies. Like I can’t stop 🤦🏼‍♀️ advice?

Also want to add I have like no friends and of online school, so at this point in my life idk what I’m doing, other than trying to build a good career.