My guess would be that two days a week is not enough. Two day a week children usually have a hard time transitioning to daycare life. I have a three day/week minimum and even that is hard sometimes on the children. Plus I know a lot of providers in my area that will only take full time kids.
I wish I had some great advice to help you through this. I would say time would help but gosh 5 months is a long time..............