Thank you everyone for the replies! Didn't quite expect this thread to get so many.
ShamelesslyPlaceMaking you make some great points. Of course I'm going to listen closely to my inner voice before I jump to have children with him. I don't want this relationship to be blinded by my desire to have children, because I still love him very much and want to know that we work together. RedSkyLastNight, I wouldn't rush into marriage if we didn't want to have kids after - even though it is the 21st century I just think it's more practical to be married, same name etc. That being said, I would love to be his wife and I don't see myself marrying anyone else.
We both live in the same area, and I see my lovely Mum regularly (really the only family member I speak to a lot), and he has a large family who have also taken me in and have been very kind to me. We already have Christmas plans, which are to spend Christmas day with his family, and Boxing day with my mum and her boyfriend. I'm sure we'll switch next year. I think we both know where we stand, finances will be split but we'll have separate accounts and we'll probably buy a house together after we start a family.
Casperandme, we have both had long term relationships, but tbh my relationship history is worse than his. Most of his girlfriends from his twenties are long term, whereas I got divorced in my twenties... Oops. I know that he's mature enough to make a relationship work, and like I've said he is a good guy - of course it's the honeymoon phase still but we've moved fast and I know enough about him I think.
MyOtherProfile, yes I know his family fairly well already (Christmas with them as I said!), and we've done a few double dates with friends. In both areas, he's really loved and everyone tells me about how he's a good guy. There's nothing from the surface to suggest he won't be an amazing father and husband.
Hi HappyHedgehog247, I agree about waiting to try for a baby and won't start until next year, although tbh I don't know when next year - I guess it depends when the time is right or when it happens? I'm sorry about your awful ex, but I'm glad you're out of that.
I know some people are cynical to "when you know you know" and trust me I've never been one for rushing into things. I was with ExH for 7 years before we got married, and that clearly didn't work out, so I don't think it matters how long you've known them for, it still failed.