RNMama - - I was in your exact position a couple of years ago. My Glock 19 was supposed to be my concealed carry weapon, but I found that I could conceal it only during the winter months. Once I stopped wearing jackets and sweaters (April), It was just too large. I am a 180 lb man, 5' 10".
I looked at all the alternatives, and I chose the Walther PPS. It was the most "Glock like" handgun I could find. The only real difference (operationally) between the Walther PPS and the Glock 19 is the magazine release.
My wife is quite fond of her Ruger LC9, so you might want to check it out also.