The ladies already gave great advice so I dont have much to add. To share my own experience, I have been running my daycare for a year. I have had a very rough time sometimes, but it all depends on the personality of the children and your own. For example too much noise or too much going on at once stresses me so... having loads of children at once was hard to keep calm and play quite, so I was stressed out. Some people don't mind, you see what I mean ?! Needless to say last summer I did take more then I could handle and burned myself out... and they werent all babies (I find that older kids are more exhausting).

I totally understand you wouldn't want to cancel any agreements you already took with parents, so just take it easy.

Also, be careful with parents, because sometimes... they are the ones that are more difficult. One daycare provider I know has her own niece as a parent and she is the worst of all the parents. Its easier to be firm with strangers then your family or friends.