I am not sure that there are enough ladies to have too many sub catagories, but the other fertilty forums have threads like PCOS so that women with a very specific issue can chat.
Male infertility, IVF group, etc.
The girls may not want to separate, but I think Deja is right. Maybe the women who have clear fertility issues could chat on a thread and those just trying to have a baby with no issues chat on another.
You could still have your main joint thread where you chat together.
My fear here has always been that the ladies who do have fertility issues may cause worry for the ladies that are just starting out. Please don't take this the wrong way, but ttc should be fun and exciting and a new ttc lady may start charting and checking cm way too early.
I would love to help where I can, but the thread is just too large at the moment for me to read through to see if anyone has any questions or anyone needs help.