I need an answer asap

I took 4 pregnancy tests but I messed 3 of them up . I’m trying the hgc tests right now , actually I just did one but there’s one pink line & then there’s a skinny half black box looking thing up more from where you dip your urine . Does that mean it’s invalid . What did I do wrong I need feedback . Iv took atleast four and they all come up different .