Tests still not getting darker

K
Today is 3 days since I found out I was pregnant. So far my tests ( I'll insert pic below) are only getting this dark. Still pretty light. I just took another test this afternoon as it's even lighter. Barely then there. I have been having light cramping but no bleeding. What do you ladies think? Should my tests be getting darker? My clearblue still says pregnant 1-2. I am so nervous though because I have had 2 chemical pregnancies and I can't get to my doctor till Friday. The first pic is this morning urine and second is from a few minutes ago this afternoon.