Need help?!?

So I’ve been testing since 7th and started to get vvfl. Then slowly got darker. Started bleeding on 12th and have had normal period like bleeding and cramping so I’ve assumed I’m having another chemical have had the minor blood clots like my normal period and everything. I’ll post pictures of my test strips and also frer also. The fr are dates top to bottom 4/11,4/12 bottom 4/13 which went back to faint. So why I just randomly tested today and line is darker than before