As a Family Practitioner, depending on where you practiced, you would likely be able to work up infertility with things like semen analyses and HSGs. You could possibly even get privileges to perform laparoscopy. You would also be able to give clomid for ovulation induction. And that's about it. It's the rare non-REI-certified OB/GYNs who gets to do things like intrauterine insemination (IUI), let alone IVF. That's not going to happen for an FP. Any place that has the resources to support a full REI practice will not be using an FP for those things.