Are there any negative effects of laser Lipo on the abdomen, if one wants to be pregnant down the road?

Your body may still change after pregnancy- skin and muscle will stretch, but fat already removed by liposuction will not return.Unless you are planning pregnancy soon, liposuction is ok. Laser will make recovery easier as well as add skin tightening.An exam and consultation with a plastic surgeon who performs these procedures is recommended to confirm you are a candidate as well as discuss your options and expectations.

There is no issue with laser lipo prior to pregnancy, both laser, vaser, power assisted lipo all can yield the same results, the choice is in your provider.

The key point to your question can be answered by the fact that choosing a surgeon with at leaast 15 years of experience that has amazing sense of aesthetic to predict your body mass ratio and overall changes to your body after a pregnancy based on your skin contraction ratio and amount of fat to remove to get great results.  Liposuction is a procedure that highly experienced and specialized to get good results.  Instruments such as Vaser laser Smart etc wont make a difference in final results as published in Journal of Plastic and Reconstructive Surgery and they are just marketing tools to charge more for same procedure.   Choose surgeon wisely to get amazing results.