yesterday was my son's first day at daycare and I was a nervous wreck all day. I really hate that he…

yesterday was my son's first day at daycare and I was a nervous wreck all day. I really hate that he has to go to daycare but I have no other choice with my work hours. To all the working moms who have children in daycare how long did it take before you became comfortable and was able to relax a little after dropping them off?