As a birthmom my decision on where to place was a very difficult one. While your profiles are being viewed many times know that each expectant mom has her vision of that perfect family. Perhaps the expectant moms viewing your profile are not ready yet and just starting their search for a match.
Staying active on the site keeping your profile fresh, blogging, changing your avatar, posting on Facebook and tweeting will increase your opportunities of matching.
I am here to help in any way that I can so please don't hesitate to reach out directly with any questions.