How to get rid of "Baby fever"?!?

Lately I've just been really wanting to have a baby, I have for quite some time now but more so now than ever. I'm graduating college next spring, and have been married for over a year now. I work with kids on a daily basis, but constantly find myself wanting to start a family. How can I stop myself from wanting a baby so much? I always get excited when I miss my period, but am so disappointed when the pregnancy test says negative, especially this time since I missed two periods in a row :/ Any advice is greatly appreciated, thank you!