First you have to realize that ur not a bad mom b/c you leave him at the daycare. Believe me when I say that he isn't sitting there crying and thinking how mean mommy is for abondoning him. He's simply crying b/c he wants to stay with you and can't..nothing more. You are not hurting him in anyway, if anything u are helping him build skills he'll later use.My little boy was the same way and I caved in so many times b/c it hurt me to leave him. But I always told him "Ashton, mommy will be back soon..I PROMISE. And I would always come back and say, see mommy came back. Now he knows that when I promise I will do exactly as I said...even on the small things. And now thats he's almost 4 I tell him to look at the clock and I show him when I'll be back.Don't beat yourself up...he'll be fine. You just got to keep at it and remember not to show him that ur scared either, he will pick up on that and it will make him more scared. Be strong and reassure him you'd never leave ur little boy and encourage him to have fun while ur gone.One last thing, when u are preparing to leave to go somewhere be sure to make it swift. It's best not to stand and dwell, tell him u love him give ur kisses and promptly leave..the more u linger the more he'll cry. Easy as Pie!