Can I change my course at clearing?

Hi, I’ve sent my application for UCAS to do midwifery, I don’t have much hopes I will get onto the course, as it is very competitive and I probably don’t have the best grades compared to others. If I did end up getting declined by all my 5 options, does anyone know if I could go through clearing to do Nursing instead as it is not as competitive as midwifery, or even change to a completely different course like education.