Hi @Quote_Queen_67 telling family and other people is hard work, particularly when you don't have enough information to answer the barrage of questions you will face in the coming weeks.
Consider holding off telling work until you can say more than 'I don't know' 30 times a day or maybe tell your closest colleague or your boss but swear them to silence for the moment. Pick someone who you can trust to sensibly run some interference for you later because people can be a little speculative and insensitive once the news gets out. Which is not in any way helpful.
You may have to take extended time off work, you may not. Three days a week might be completely doable, it just depends what treatment you end up needing and how you react to it. For now it's a waiting game which is just excruciating.
Best of luck MXX