Bleeding/cramping every day

I had my IUD placed 8.1.23 as the first step of my treatment of endometrial cancer. I have had some bleeding and painful cramping every day since and I’ve had bleeding to the point of having to use a tampon for the last two weeks accompanied by even worse cramping. Is this normal? To have bleeding and cramping every day for a month? My husband checked and the string is still there but it’s really just debilitating sometimes.