Really dark indicator line on HPT but other line light?

So I've been throwing fits because I've had miscarriage last year and so I've been going in circles in my head about if I'll miss carry again and or even if I had a false positive on the clear blu digitalis. I had 3 BFP a week before my period was due. I read someone getting false positives and wasn't pregnant with those. So I went and got first response kit. Has one digital and one pink dye. I just took the pink die test. And the first line which is the pregnancy indicator line is like DARK RED. But the second line is really faint. I almost thought it said negative for a second but the first line is the indicator. So I'm just confused as to why the first line is extremely dark and the other is barley there ? Could this be a faulty test ? Am I just over thinking everything ? Anyone have this happen?