So I have been thinking, is this site really pornography? Sure there are some parts of this site that have nude pictures of pregnant women but a lot of it is fully clothed pictures. A fully clothed woman is not porn but we do jack off to it.

I see it more as a porn directory site since a good chunk of content is located on different sites such as Google Drive, Facebook, Instagram, YouTube, or other porn sites.

I think that to a person with a pregnancy fetish, this entire site is porn because the images can cause arousal. But to the masses, the clothed stuff is definitely not porn.

okay yes my wife is okay with it & we both watch porn

Yes...

I'd say both.

That may be a philosophic question. "Beauty", "sexy", and "porn" can overlap one another, but they aren't exactly the same thing. Especially, "sexy" and "sex" are quite different.
For example, women showing nipples (or topless women) and lactating women are beautiful and sexy in most cases, but I wouldn't call them "pornography" unless it came to sex (e.g. real fuck, masturbation, sex toys, genital spreading, etc). So do other non-sex-organ parts, like pregnant bellies, necks, and thighs.

This site allows porn, but it's not all porn. How "much porn" it is depends on what you call "porn".

This is a forum for preggophilia, people who loves pregnant women. It doesn't has to be porn. Simple.