working out

when do you start to do a work out program ? i am only 4 weeks post op and i dont want to over do it and hurt myself  

My doctor just gave me the ok to work out but to take it easy with the ab exercises since I am only 7 weeks out. He said the best exercise is walking or water aeorobics since we will be losing faster then we can tone or stengthen up our muscles for now. Hope this helps!