Im wanting this so bad... am I crazy? Long

I wanted to hear opinions... I guess wanting another baby makes me feel crazy. But maybe some opinions or familiar situations would be cool...

I had to get back on my bc because I did not have my period for almost four months. So I started my bc last month and my period was late. But I had been getting some of the brown here and there. I tested twice and both negative. My period barely lasted 24 hours, but a very dark red color and "chunky". Well now a week later.... I threw up last night and horrible diarrhea this morning. And still very nauseous, though I haven't thrown up or had any stomach problems since. I don't think its a virus because my kid and husband don't have it. And I don't think its food poisoning because my husband and I have been eating the same stuff lately and hes fine. Any opinions? I want this so bad that I know im making everything "oh maybe im pregnant"