There's nothing to feel guilty about at all. I sent my son to daycare when I was pregnant with my third. He was almost 18 mos at the time, has ADHD and was, I swear, in 10 places at once. The daycare even asked me to bring him every other day because he made his provider cryAside from distressing his provider, it was a great experience! He had a blast, I got a break and the new baby got some bonding time. Don't feel bad....it's a great idea and he'll love it!