Update...

That evening, I found out that my husband lost his job
On Thursday morning, I decided to tell the clients that I could extend my hours to meet their needs and they said they would think about it. I can't afford to lose this income. I asked on Friday if they knew of their decision, and the mom said she would let me know next week.
So today, I texted them and mentioned there was a potential client and I needed to know if they were staying...all they could say is "We're considering you. Our meeting at the centre is on Wednesday, and I'll let you know by Friday". I know I was being wishy washy with my decision to keep them, and had my husband not lost his job, I would have just let them go. I don't know what kind of game they're playing...if they thought their son was benefiting from my daycare, wouldn't it be a no brainer? I don't know if I should wait until Friday for their answer? I'm losing sleep over this. Any help would be much appreciated