Is it bad to want it so bad?

Is it bad that I really want a baby right now? I’m 18 and he’s 20. We’re pretty mature for our ages. He owns a business and I do some makeup and hair on the side. He says we have to wait and we both want to finish college. We were even looking at buying our first house a few weeks ago. It’s just that all of the people I went to school with are marrying and having babies and gosh darn it I’m having the worst case of baby fever. It’s like my heart, soul, and body are begging me to have a baby right now. any advice or anything really? Somebody tell me it’s a very bad idea. 😩😩