Looking for play dates in Aurora for 18 mo daughter

Hi all, I work full time in the Loop and have two children; an18 month old daughter and an 8 month old son. I'm looking for some friends for my girl about the same age, and for some mom's in my same situation: working full time, raising children, etc. Most of the mom's in my neighborhood are stay at home moms and I miss out on a lot of playgroup activites as they are held during the day. I'd like to get together evenings or weekends. Talk to you all soon!