HI, I live in Luxembourg so not far from France. I have a friend who saw a French OB of ger pregnancy but I don't know too much about her experience etc.
Have you been in France long? I'd talk to people near you to find a good recommendation or your family doctor.
I know some doctors over here can be strange about fertility problems, one told a friend of my mum that she didn't have fertility problems, she just didn't want to be pregnant enough! If you get someone like that remember they are being stupid and find a new doctor.