How to get rid of baby fever

So I'm 19. I've been with my fiance for almost 2 years now. I live with him and we both work good jobs so we are financially stable. I dropped out of art school (college) because I knew everything they were teaching and I don't feel like I'm meant to go to college. I feel like I'm meant to be a stay at home mom. I've been getting a lot of hate from girls on here. Ik I'm young etc. But I really can't stop thinking about having a baby. I had a scare a couple months ago and I really thought I was pregnant and when I found out I wasn't I became really depressed. And no matter what I do I can't get over this depression.