Hi,
I had the same issues twice actually.Moving to a different city it took me about a year to build a business..I had only two dck for a long long time,for a year!One was full time and the other part time,but it went on and gradually more came in.i was lucky because parents never complained about it,but I felt horrible.. Some parents even like if there are no many kids at dc so theirs can get all the attention-which works sometimesYou just have to be patient and hope,it will come.
It is hard because there is no money and your days are not so exiting as if you have 4-5 dck.
Some parents have a hard time putting their little once in a dc if there are no other dck,it's not always a trust issue,but more like 'their child will not have anybody to play with'..which is strange in my opinion,if everybody would think like that we would never fill the spots in our dc.You have to start somewhere.
I would stay patient and wait,don't get desperate and take everyone in your care,it might take some time,but you might get better clients too.it is better to wait for better once then take quickly any body just to feel the space and soon regret for your fast decision.
Good luck!