4weeks exactly today!

My FRER tests have all got darker and today’s one was as dark as the control line which I was obviously happy about because it gives me peace of mind that things are going the right way. I also bought cheap test sticks on amazon that I’ve been testing on but not at the same time and not fmu. I tested tonight and my pee was definitely diluted and the test was lighter than the last cheap strip but this mornings frer was as dark as the control line. I guess I’m just nervous because this is my first pregnancy after 2 failed

IUI

’s. I just need someone else to tell me its because of my diluted urine and not because anything is wrong??!!