Confused!

I tested 8dpo and got a very clear positive and tested every 3 days. I am now 4 days passed my missed period and my positive is so dark the control line almost isn’t there. Has anyone had this happen??

Since people want to call me dumb maybe I need to make myself more clear. I have had miscarriage after miscarriage and I wasn’t sure if my test line being that dark and the control line being light like that was normal. My bad for not being an expert! Please don’t comment negative things on here. I have never done that to anyone.