i am 7 months pregnant going through alot of anxiety and tourette going on through pregnancy each day its worse and i cant breath at all the doctor send me sertraline-oral zoloft 50 mg but she told me to take half am scared it might harm the baby or she could be born with problems i dont know what to do i need help and advice on this medecacion is it safe for my baby and will this help me calm my anxiety and to breath better?