What should I do?

So I’m currently a sahm my boyfriend and I share a kid together we have a 3month old . I have 2 kids from a previous relationship and he has one . So In total we have our hands full with 4 boys lol . When I was 7 months pregnant he told me he wanted me to stop working we weren’t financially stable but he didn’t like to see me work . So I stayed home . When I gave birth he let me know he would provide and I should stay home w the kids since he makes more money now and is financially stable . Which I agreed bc I want to stay home w my kids and not send them to daycare . We don’t share a bank account but I do use his card when I go shopping etc . He lets me spend money and buy whatever we need . I do all the duties I’m supposed to be doing I cook clean care of for all the kids and try my best to support him in anyway . Well my best friend was a sahm as well and she recently split up w her bf and he left her w nothing and she’s having a hard time starting over w her kid he didn’t care that she basically stopped her life and focused on their family. and im concerned that will happen to me too . i brought uo the idea of getting married and he didnt sound opposed to it but he didn’t agree either . He said he wants to have a traditional marriage like proposal and wedding and all that . But I explained to him I rather have a big honeymoon than an actual wedding . We dont have much family around anyways . And we already have a kid and are basically doing what married couples do lol . He said having a conversation about marriage is good but he doesn’t like to have a conversation about when or how he decides to ask me to his wife . I honestly don’t know how to feel . I told him I’m basically doing the role of a wife and don’t see what’s wrong w wanting to make it official. Am in the wrong ?