 [ Symptoms ] i have diabetes and am going to have knee replacement surgery what do i need to know and what can i expect i have type 2 diabetes i am going to have knee replacement surgery in january while my a1c is 6 0 my daily sugar levels are all over the place so much so that my dr has had to increase my insulin i take lantus 5 units in the morning and 55 units at suppertime and 7 units of novolog at suppertime what do i need to know about this surgery and what can i expect from my diabetes thank you [ Disease ] hi so did you take plan b then and did you have a period in the next few days if so it should have done its job then but if you do miss you next period just wait a week then go get tested either an hpt or best at your doctors good luck