Glock 26 (subcompact 9mm) in a tuckable IWB holster, appendix carry.
Because I have a short torso and a typical female hourglass shape, appendix carry is the only way I personally can carry concealed on the belt. Every other position for concealed holsters just does not work and is not comfortable. (Women have curves -- guns do not. It's a losing combination.) By moving the holster to the front, the gun rides comfortably without digging into my ribs or hip. As a bonus, I can easily draw with either hand and it's much easier to defend from a grab. And with the tuckable holster, it's easily concealed under ordinary women's clothing.
On the range (when I must demonstrate for classes), I use a dropped and offset holster from Blade Tech, which is very comfortable and works well because it kicks the butt of the gun out away from my body despite the hip curve. But that holster won't be concealed with anything less than an oversized parka that reaches to my knees!
pax