Scared of Miscarriage!

Okay I don't know what's wrong with me! I'm at work and I just went to the dollar store to buy 7 more pregnancy tests! I don't have any symptoms except for fatigue and frequent urination but I don't feel like that's enough for me! I took a test and of course it said positive. God... Tuesday can't come fast enough. I don't have a history of miscarriage and this is my first child. I think I'm just afraid to be blessed. Is that possible?