Hi Kaila,
I did the same thing, started my daycare while on leave. My daughter is now 9 months I started when she was 6 months. I have found the chatter, noise and excitement takes her attention from mommy to the other kids. She now crawls around and loves playing and interacting with them. Some days if she's having a clingy day I arrange for more quiet activities so I can snuggle with baby and still supervise. She's sick right now and I can't have her here with my daycare kids so the neighbor is watching her. You will figure it out as you go! My hardest thing with the baby is outdoor play. That's when I use the exersaucer and that allows me to still play soccer or whatever with the dck's. Good luck and all the best!