Single foster parents - How many kids?

Single mom school teacher here. I am licensed for 3, but have only had 2 in my home at a time (and one of those was unofficially - ffd came to stay often after she moved to relative). Currently, I have one 2 year old. Daycare is covered for foster children here, so that is definitely helpful. If I had school age kids my work schedule is perfect for it. Temporary Mom is right about daycare and illness. I've used up all of my sick/personal days plus some the past couple of years between illness, appointments, and court. There are tons of appointments especially when a child first comes into care.