HI, I AM 39 YRS OLD AND AM GETTING READY FOR IN VITRO FERTILIZATION 1ST TIME, MY DR. ASK IF I WANT TO HAVE PREIMPLANTATION GENETIC TESTING ON AN EMBRIO BEFORE IMPLANTATION, WE DO NOT HAVE ANY GENETIC ABNORMALITY , I DO NOT WHAT TO DO, THE MORE I READ ABOUT AM MORE CONFUSED, PLEASE IF YOU HAVE ANY INFO OR ADVICE FOR ME, THANK YOU