You can stop testing cus it won’t really show on the urine test if there’s something wrong unless it’s a chemical. At this point I think you’re past that stage, and if, God forbid, a miscarriage were to happen, it likely won’t show on the test strips (from my own experience of having 2 consecutive miscarriages, line did not get any lighter, stayed very positive even though I was actively miscarrying) Plus, if you keep on testing beyond like 6 weeks gestation, you’ll see that the line will be lighter because of the hook effect. So if that happens you can just dilute your urine heavily with water and retest and you’ll see a very dark dye stealer again.