Is this a good sign?

So I found out recently that I'm 5 weeks pregnant. I'm having all the symptoms, to a point but I feel like they are becoming more pronounced now as time goes on. I havent had my confirmation appointment yet (not until the 5th) but I'm nervous. I've had a miscarriage previously and DO NOT want to go through that again. So I do the only thing I can think of. I test. Every couple of days I test to see if the lines are getting darker, they are. Just curious, is this a good sign or does it not show much of anything?