New here, worrying about results and coping with kids

Hi everyone, I'm recently new here, I have my ct scan on Friday and praying that it comes back with something else causing my problems instead of cancer, but I'm struggling to stop worrying until then, and not about myself but about my family. I have two children and no family to help with them, my partner works full time through agency but is in hopes of being offered a contract in the near future and we receive universal credit as a top up. I'm just so worried that if they do say it is throat cancer and that I have to have treatment that it won't be possible as I have nobody to look after the kids and I don't think my partner could just leave employment if I'm ill and I'm just worrying about the problems it'll cause and I'm just wondering please if anyone could shed any light on what my options would be as I'm just so worried our family routine will crumble under the pressure.