Of course the best (and healthiest) way to rid yourself of belly fat is through diet and exercise. Patients who have liposuction as a weight loss tool do poorly over the long term, as they continue to gain weight. They simply haven't broken the cycle. Many complain of gaining weight in strange places. This is due to a continual gain in weight.
The ads you see with models romping around in bikinis are not postoperative patients who used to have excess weight and had liposuction. They are models who if anything have had minimal fat removed. The perception that patients can get liposuction and look like models without a simultaneous diet and exercise program is simply not true.
For stubborn areas, liposuction is wonderful and can be life-changing. It will not remove fat inside the abdomen, the so called "beer belly" fat. Unfortunately, this is the most dangerous fat for diabetes and heart disease. That is why a regimen of exercise and good diet will give the very best results when combined with liposuction.
Liposuction in the abdomen is not thought to interfere with pregnancy.