How to know your boyfriend is leading you on???

Ir

So me and my boyfriend have been in a relationship a year now. And I’m 6 months pregnant. I would want to get married. My boyfriend told me that he wanted to purpose to me on our first year anniversary but he doesn’t have the money to buy me a ring. The thing that makes me think he’s leading me on cause he’s not saving money to buy me a ring. He always promises a lot of things but never comes through with what he promises or says.