Disgusting, but is it illegal?

[Isatonacactus]

I've found pornography on my husband's computer.
I'd say I'm rather naive about these things and find it all revolting, but it claims to be of teenagers. Is it illegal?
I can't even tell how old I am from looking, never mind anyone else. I didn't want to dwell on the photos, so I honestly couldn't begin to guess at actual age.
Disgusting is one thing, but illegal is quite another, so I need some advice please.

You can report it here:

www.iwf.org.uk

They can investigate and establish if it is legal, or if the teens are underage.

I've just looked at that link. I think they want website details, but the photos I found are downloaded. Any suggestions?

If it claims to be of "teenagers" it will usually specify in small print that it's 18 and 19, to meet age of consent reqs in the US, or even portrayed by older 'actors'.

So probably not illegal, and conceivably downloaded by misclicking when trying to do something like find TV episodes without paying.

Eh? How can you mis click child pornography? I've managed to get by without doing so.