There is no specific research stating that it is unsafe to receive laser hair removal treatments while pregnant. It is advisable to refrain from receiving these treatments during pregnancy due to the lack of knowledge of the effects it may have on the fetus. If you do choose to proceed with the treatments then it is advised to avoid the abdomen as well as the breasts if you will be breast feeding. Always consult with your health care provider before making these decisions.
Web reference: http://www.capefearaesthetics.com/details/med+spa-20/