I’m freaking out... tell me what you think PLEASE.

So I have been getting really good progression on my first response tests the past few days but today I took another one and it’s lighter!! And also the lines are off center AND the control line is wat thicker with ink than any of my other ones... what’s going on? Do you think this is a chemical? My new test from today is on the bottom

I was totally freaking out and took a cheapie too just to see if a light line was still there and it was! And it was darker than my first response... what the hell?! Is this a chemical? That is the darkest line I got on a cheapie.