Stay at home or work from home mom thoughts?

I'm pregnant with my first child and I just started a new job as a cna but am having second thoughts already...im so worried I'm going to hurt the baby since we are super understaffed where I work. I'm not due until January but not sure if I can afford to quit now or not. My husband has a good job and works very hard and I don't want to add pressure to him if I leave work. He says he wants me happy and supports whatever my decision is but I'm not sure if we can swing it....any thoughts or input?