You only take the shots for the first 10 or 12 weeks, then the placenta takes over, so I'm way past that point now. When I refilled the prescription, the pharmacy fill three vials at a time, and out of my last refill, I only used one vial before I was at 10 weeks. So....now I have two left over.
That clinic loves PIO above all the other alternatives, and they're just going to tell you to use it no matter what your preference. They say there's more breakthrough bleeding with crinone. Also they monitor your progesterone levels by drawing blood every week, and you can get an accurate measure through your bloodstream with PIO, but not with crinone. That's their reasoning.