I wish we could just approach adults and ask them to be our friends! But at first glance, it may seem like a good fit, but then upon further investment, it doesn't work out. I've found that others don't want to make that investment, thinking it's a waste of time. Anywho - DON"T be discouraged! Having a baby changed my friend life! If you plan on breastfeeding, you can start checking out Le Leche League meetings. Check out www.momsclub,org and search to see if there is club in your area, it's for SAH and part time working moms. Another one I've found is MOPS (Mothers of Preschoolers), it is Christian based and you can find their website and search for groups in your area. Do you attend a church, etc...? They may have a moms group.
I met a few moms at the childbirth classes, I also took them through the Fairview system, and even though I didn't deliver through them I was invited to a small group. Check out your local yoga studio, maybe they have prenatal yoga? Or community ed prenatal yoga?
I would invite you for coffee, but I'm on the other side of the metro from you, even farther than Bloomington! But I must say, your Bloomington friends are being selfish if they won't make the effort. With a newborn on the way, I feel they are being unreasonable. It's the start of a different season for you, they are probably feeling left behind. They will catch up someday, I'd say if at all, keep tabs on them (Facebook, etc..) and when they reach the same season they will love you for the advice/ help. Good luck!