Tamiflu for pregnant teacher ????

I teach spec. ed 1st grade and I currently have 4 kids out with the flu and 2 with strep throat, its going around the school. I dont feel really sick, just kinda a sore throat and yesterday by sinuses kinda hurt but it went away. Either way should i visit the doctor and start tamiflu to avoid the flu ? Im currently 5 weeks today and i just REALLLY dont want to get sick and i know usually id accept that im most likely going to get sick dealing with so many kids. Has anyone else taken tamiflu while pregnant ?