Dear OP
No-one is angry with you but those posting are very concerned about your situation which potentially makes you very vulnerable and trying to convey that to you. We are also speaking in the knowledge of what a huge commitment of time, energy and money children are – children are worth every drop of that but parenthood puts serious pressure on any relationship and you are already worried about the cracks in yours. In short, there are serious red flags here.
Your partner knows marriage is important to you and he dangles the prospect of it but has not proposed and make lazy excuses for not doing so. The argument that weddings are expensive etc holds no water – children cost a huge amount of money to raise. Furthermore, it's possible to marry very cheaply.
Marriage is not equally important to everyone – my OH and I had our 2 DC some years before we got married but we were a bit older (mid-30s and mid-40s respectively), jointly owned a house together (bought with the intention of raising a family) and we knew we would get around to getting married and, in due course, we did. I took several months' mat leave but never intended to be, and never was, an SAHM so I always had financial independence. At the moment, in legal terms, you have the status of a lodger in a house where you're helping to pay the mortgage.
But the real point is that I never doubted my OH's commitment, whereas your DP's failure to propose is, at some level, causing you to doubt his. Pay attention to that doubt. You know deep down that the most likely explanation for his failure to propose is that he wants to keep his options open and if that is the case, he may prove to be an uncommitted and unreliable father, especially once he starts to experience the reality of the early years of child-raising. The bottom line is that, unless you are fully ready to raise your child alone, you really shouldn't enter into a pregnancy with any uncertainty about your partner's commitment to you; it could be argued that it's not really fair to your future child to do that either.
32 is still relatively young in terms of childbearing. This is highly unlikely to be your last opportunity. I have numerous other friends, in addition to me, who had children in their late 30s and some in their early 40s.
The refusal to have anything to do with his family is also a red flag and would fill me with alarm. There may be good reasons for it but I would be very uncomfortable taking that at face value given that they will be your and your DC's relatives if you do stay with your partner.
The bottom line – and what people are trying to convey - is that you deserve better than this. Please stop TTC until you have properly sorted out where you stand in this relationship and keep in mind that you may need to move on to find what you want.
Good luck.