Difficult Situation!! any advice would be great

[happyheart]

I really dont know where to start. I have been doing home daycare for over a year and am now 8 weeks pregnant with baby number 2. I told my dcp's during the original interview (when i wasnt even pregnant) I would take my 2 weeks vacation then take back all the kids, but now I feel like thats just not enough time. To be quite honest I'm not sure I want to continue doing home daycare at all. Im not sure how my 2 yo daughter will react to sharing mommy and daddy with a new baby and all the kids at home daycare. As well she already shares all her toys and playroom with daycare already. But thats not even the main problem, I feel completely taken advantage of by one dcf. I do not include breakfast yet they bring their kids unfed everyday and do not bring anything to give them, they leave their kids from 6:30am to 6pm on a regular basis which i feel is totally ridiculous, open to close everyday, not to mention their kids are not the easiest to take care of. I have a good relationship with my other dcm but her child is difficult as well. I just feel like hdc is not a good fit for our family anymore.
Im thinking I will probably go back to school and finish my degree once baby 2 is born and I wont be able to do hdc while doing school. Financially I need to keep all my kids until the end of my pregnancy. I just really dont know what to tell the parents. I keep changing my mind and dont want to tell them I wont be coming back in case I change my mind and dont want them to leave until the end of my pregnancy. Any advice or experiences would be great