We thought this was impossible...

I've been overwhelming nauseated for about a week now. I never thought I would see this. We bought the test just to rule pregnancy out before calling my doctor. I have major health issues and we believed I could not conceive. The last time I saw my obgyn she said because of my health she thought it was too dangerous for me to even try. I want this to be a happy moment but I am terrified. Please share positivity and any stories of hope. (Mods: If this was posted to the wrong group please help me move it)