how do you get over the fear of miscarrying?

desi • mommy to mason ray born july 27th 2017 💙 mommy to an angel baby
I only found out I was pregnant 3 days ago and I'm TERRIFIED to lose this baby. I'm so attached to them already. I keep rubbing my belly and idk I just really don't know what I would do if I lost them.. going to the doctor Wednesday. hoping everything is okay so I can stop worrying.. I know it can't be good for baby.