First timers at Daycare

I just recently began leaving my 2 year old at a daycare. To be exact I've been dropping him off at daycare for exactly a week now. The people are very nice and there aren't many kids while he's there so the caregivers have enough time to pay to every child there. The first days it was very hard for me to leave him because he'd cry at the top of his lungs, today I dropped him off and he seemed just fine, sad that I was leaving but no crying. He even walked into the daycare all by himself instead of me having to carry him in by force. Now, it was much easier for me to leave because he didn't cry but now I feel horrible. I feel so bad and sad about leaving him, I wish I could just stay home and sleep in with him. I know it's a process for both the parent and child to feel comfortable and before it gets easier to drop him off but I can't help it to feel this way. I know my baby is being treated just fine and maybe it's because of all the horror stories I've heard from different daycare that kids don't get treated right that this is why I feel the way I do. But I would like to hear what many of you did to make it easier on yourselves when you experienced dropping off your kids off at daycare to go to work. :)