So sorry you are having such a hard time conceiving again It is frustrating...

A corpus leuteum cyst would be from your first pregnancy (anyone correct me if I'm wrong!).

You will find a lot of ladies suffer secondary infertility, sadly it's quite common. I'm know you'll get lots of wonderful and advice here.

I hope your appointment with the FS will help you get the result you are hoping for in the very near future and that your pain is easing

Good luck!