Bleeding early pregnancy

So here’s my dilemma I’ve been bleeding bright red after bleeding dark brown (implantation I’m guessing ) it’s been 2 days with the bright red bleeding I’ve only needed 2 pads I’m concerned I’m having a miscarriage but I have to uterus’s its called a bicornerate uterus could this be the other one just having a normal cycle does anyone else have this issue ? Even with one I’m early pregnancy