NEED HELP

My sister says my other two test were postive and when I showed her a pic of this one she said it looked negative because the line going across wasn't dark enough ,  mind you my results showed up in 1 minute I suppose to be going to the hospital Monday to make sure my hcg levels are going up and baby is okay , nothing's bad going on with the pregnancy but I wanted to make sure since my appointment isn't until nov 7th