ok ladies I need some advice

So I took my first pregnancy test on Monday and I took another one this morning and I did that to see if the test was darker as it should defiantly get darker but it still took a minute to come up and it didn't get dark as fast as I think it should theses are the test tell me what you y'all think and oh before you ask I have already talked to my DR got blood work yesterday and I'm going again Friday to make sure my numbers are rising like they should I'm just a bit concerned anyone have things start slow and still have a healthy pregnancy???
The top was Monday bottom today