Clomid, round #2. Any cycle buddies?

Kristin • Trying for #2!
Today is CD 3 for me and my doctor wants to put me on another round of Clomid. I was on 50mg previously but she's going to increase it to 100mg. I really don't know if that's the solution I need, but I'm at a loss for what else could be contributing to our infertility since every other test has come back normal. So, at this point I'll try anything. If we don't get our BFP this cycle then I'm going to get a second opinion.