I've live with DP and have one dc. We bought our own house this year (he fronted the deposit as I've never been able to save as a single parent) he earns about £15k more a year than me. We split the bills equally and I basically buy food shopping until I'm out of money which is usually not long after payday then he picks up the rest.
DP pays for any holidays and meals out (not frequent at the minute). He doesn't pay for anything for DC that includes Xmas, any activities, birthday and childcare (we don't pay this currently as I now collect from school due to wfh)
I have to add I am crap with money I don't save, I occasionally buy things I don't need and seem to be constantly skint but I feel utterly fed up that I get to a point in the month I have 0 in bank account and feel I have to rely on DP. I also feel that I have to "borrow" money which I then pay him back for daily things.
So is this normal? We are not married (yet) I don't know if it's common to share money at this stage, I've been in two relationships and DS dad never worked and I was the one with money.