Can't eat meat

Has this happened to anyone before? I'm almost 7 weeks pregnant with my 4th child, and with this pregnancy not only can I not see, smell, or touch meat, I can't even eat it, no matter the meat. All I can eat is fruits and vegetables. Never has this happened with the previous pregnancies, is this normal? Is it healthier to avoid all meats then for the remainder of my pregnancy? Has this happened or is this currently happening to anyone else?