Is this classed as cheating or not?

[Mainsode21]

Bit of background
Me and my boyfriend got together about 3 years ago we met through mutual friends and at the time I wasn’t really ready for a relationship but he pursued and I started to like him.
At first he helped look after my daughter ( from a previous relationship) while I worked and I wouldn’t give us a title ( boyfriend/ girlfriend) we went out like clubs/drinking and went to our mutual friends wedding.
After a few months I found out during this time he had got drunk and slept with a girl he had met a few times while me and him were in the talking stage.
I got angry and we didn’t speak for a few weeks but then I gave in and we started going out properly. I guess I started to see I had grown feelings as hurt he had slept with another woman while pursuing me.
I then found out he got another woman pregnant but this was months before I knew him so not really a problem.
Fast forward to now and we have one daughter together he’s a great partner and we have our nights out and time together. I can’t get that girl he slept with out of my head though. I think I was too forgiving.
I also found out he had done a few sexual things with another woman that I know of ( the mutual friends we have) but again this was before we were official.

Am I being stupid? Should I just forget these past hiccups and carry on?

You're not being stupid and it's legitimate to have feelings, but in this case I think this is firmly in the past.

You say you weren't a couple when this happened, and you are now. If his behaviour has been decent, kind and respectful since, then I'd say stick with him.
Move forward and enjoy your life together.

He got another woman pregnant before you knew him? Did she have the baby? Does he see the child? You didn't mention that at all after.

If she had the child and he didn't bother to tell you he had a baby on the way then that is a massive deception and I would have ended it back then.

Yes he told me and he didn’t see her for the first year as said he found it hard to get his head around it.
He now sees her on the weekends.

You let a man who you weren't yet willing to call a boyfriend look after your dd? I'm just a bit stunned by that. A lot. Wow.

I think he is right tbh. You weren’t in a relationship and wasn’t ready for one yet he isn’t allowed to see anyone else because thats “cheating”?! I did also raise my eyebrow at the fact he didn’t see his daughter FOR A YEAR because he had to get his head around it meanwhile he was looking after yours?! So he is not exactly a great catch is he?

YABU. You wouldn't even call him your boyfriend, you finally settled for him after he pursued you but kept it casual, sounds like you weren't massively into him so you can't be annoyed for him not remaining exclusive in that time.

Why mention he got another woman pregnant way before you were together? That's got nothing to do with the rest of your OP. Were you hoping posters were going to give justification to your feelings and say he was awful and slept about so you should have been angrier?