A.F.
Congrats on your expected bundle of joy! All of my friends who live in the city use/have used Clybourn Kindercare Center Director: Kathy Florez; 1733 N. Marcey Street;
Chicago, IL 60614. It is about 2.7 miles from your zipcode but is the only place I know people have used/trusted. They love it there but I understand there is a waiting list. It is also more expensive than Kindercares out in the 'burbs (and higher quality from what I understand). It is still cheaper than the rate many nannies demand in the city. This kindercare takes infants as young as 6 weeks old. You can find information on them by going to www.kindercare.com and putting in your zipcode in the search.
Also, I am not sure on your space in your home but my husband and I recently got an Au Pair through an agency and we have been thrilled. They must have their own bedroom and cannot care for children under 3 months - they work max 45 hours a week and 10 hours per day. It has been a flexible solution and great decision for us! We have a 10 month old and 26 month old and they were honestly just getting sick too often for our liking (even in the super clean Montessori we had them in). I am likewise a career-focused woman (attorney) but plan to have a mini-brood of kiddos!
If you are interested in exploring the au pair option please give send me a private message and I will give you my e-mail and phone number or you can provide yours!
Best wishes on the coming months!