C.S.
I can understand being axious to train- I know we are all ready to get rid of the diapers. But unfortunately when you work you need the support of your child care provider to train with you and at your son's age I don't imagine he's even in a room with other kids who are training so it may be difficult. My best suggestion would be to talk to daycare and see if they will consider taking him to the potty on a regular basis if you put him in pull-ups. Pull-ups may not be the best way but I know a lot of daycare's require them.
Good luck!