"They are putting people's lives at risk"

My fiancee went for a consultation at the beginning of December and was told she needed a colonoscapy she was told that it was urgent and she would be seen within 3 weeks. In that time her condition has gotten worse and many times she has been in tears from the pain. She has just found out that she is pregnant and has informed the hospital and they told her that they won't do the colonoscapy now because It could harm the baby. But her condition is getting ready bad now. She has all the symptoms of bowel cancer and no one at the hospital seems to care they say it could be dangerous to the baby but surly doing nothing if it is cancer will do more damage to both of them. And if that happens all that will be said by the hospital is sorry we should of done more. Well don't wait till its to late Her symptoms won't stop because she is pregnant. The pain won't stop and neither will the blood every time she goes to the toilet. She has explained all this to you now stop putting her and her baby's lives at risk and do something!