Great to see you keen to get back to exercising after your surgery, @Maree72 .... I think you'll find that, depending on what surgery you have, that upper body exercise (including driving & lifting ie laundry, babies, anything really etc) will be discouraged for the first week or two, possibly longer ... until everything has 'knitted/reconnected', not sore and also checked out by your surgeon .... as It can be quite uncomfortable/painful for a month or more following surgery, specially with the under arm area from the node removal ... so I'd be pretty sure you can rule out yoga - but walking in the pool (not using your arms/hands) should be OK ....
You definitely wouldn't want your wound to get infected in the water either, so good on you for putting your questions to your Breast Care Nurse and should also ask your Surgeon too .... But you will become aware of your own limitations after the surgery, anyway xx
Sorry to hear your son has been injured - I hope he recovers well. ACL injuries can take a while to recover!! :( ... you may have to arrange for someone else to take him to the pools once you've had your surgery!
Do you live in Tassie?? (Magic Place!! I want to go there & travel around fishing for bream & trout! ;) ) You can add your general area to your profile .... we may have members nearby who you can connect with.
Jump onto this post - there is a lot of info there on what to take to hospital etc as well as some 'tick sheets' to 'self assess' yourself during your recovery - fill them in & take them with you to your appointments!
https://onlinenetwork.bcna.org.au/discussion/23477/a-big-welcome-to-all-our-new-members#latesttake care & all the best with your surgery next week xx