Just ask your mum which cheeses were banned with her, as she seems to know. Oh yes, none of them were. I've had feta cheese, cooked goats cheese, ricotta cheese, cottage cheese and cheese spread and they've all been fine. It's more the pasturised/unpasturised rather than hard/soft things anyway, from the lists I've seen.

(BTW, I didn't know I was pg when I had the goats cheese and the feta was served up in a salad when I was at a friend's for dinner, so couldn't refuse it, not that I wanted to!)