Dryopteris affinis?

Fern sporangia-3.jpg Fern frond sporangia-2.jpg Fern frond front pinnules-1.jpg Fern frond front and back-0.jpg

Hi there, I’ve had this fern growing in my garden for a couple of years, and wondered what it was – I’ve got as far as Dryopteris, and it’s been suggested it might be affinis. I didn’t plant it, and it’s in quite a restricted situation, but seems quite happy there. I’m just south of York.

Thank you