cannot afford

My daughters will go to the doctor tomorrow for flu shot. They need to have a flu shot since their brother is sick. We do not want them to get sick and I know they have their shots last year, but still not too late to get it. I hope my son will feel better soon. I am worried about him all the time when he gets sick. There are lots of people right now that are sick, even some of my co-worker, but I hope not me, I cannot afford to get sick it is too expensive.