After a year it is unlikely you will have a double bubble. Capsular contracture on the other hand can unfortunately happen even after 1 year - there are no proven things that can be done to ensure it never happends.
At 5 weeks after surgery your breasts are still settling. This takes about 3-4 months to occur, and so it would be better to wait until then before assessing your results. I don't routinely recommend massage, therefore it's a good idea to ask your surgeon if it's okay to massage your breasts.