Weight Gain Before I Have Liposuction Done

5 lbs is a minimal weight gain for the average person. Therefore, I wouldn't worry too much about when to proceed with surgery.  However, you should talk to your surgeon about this just in case and see what they say.

Unless you are nautrally very thin, 5 lbs really won't make much of a difference in your final result, and you're probably ok to proceed with the procedure at your convenience.  Talk it over with your doc and see if he agrees, but it should not be a major issue.