I feel for you! My last baby I started last October cried every day all day for about 3 weeks...but by the end of week 4 he finally stopped! I nearly terminated several times, btu hung in there and now I am glad I did. He is such a sweet, funny, smart little boy I don't think starting early will help...start him full-time when his mom goes back to work and just brace yourself. Don't plan anything for the other kids...maybe some movie days so you can spend time with new baby. I had a new almost 2 year old start today and I let the kids watch a 30 minute movie to give me more time to bond with her. I am not planning any structured activities for the rest of the week as I need to minimize times when I cannot be focusing on helping the new child adjust and the other kids adjust to having her there (there were a few tears on 3 year old dcg's part this morning too...she doesn't like change!)