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A very early stage of a pregnancy, soon after fertilization. So named because, although it shows up on a pregnancy test, it cannot yet be detected by ultrasound. There is a high risk of miscarriage in the early stages.
Girl 1: I've just done two pregnancy tests and they both show positive! I'm so pleased.
Girl 2: Have you missed a period?
Girl 1: Yes. I think I was due-on yesterday. I thought I was just late. I'm so happy!
Girl 2: I think you're jumping the gun a bit. Don't build your hopes up.
Girl 1: Why?
Girl 2: It's too soon. You should give it a few weeks before you celebrate.
Girl 1: Why? It's showing I'm positive.
Girl 2: I know it's showing positive, but it's just a chemical pregnancy at the moment. There's a good chance you'll have a late period and lose it.
by Felanna March 18, 2014
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