Husband is becoming a mooch but I love him with all my heart

So married the man of my dreams.. he's amazing in so many ways. Extremely smart, hard working, sweet as can be, does most of the household chores, funny as hell.. he's an attorney and he does make a good living.. but he's paying things like student debt, credit card debt, car payment and rent.. by the time the month is over it's like he never has any money.. as a result I end up paying for just about EVERYTHING.. he often tells me he's going to pay me back and doesn't (I know because he gets behind I get it) but I'm starting to get resentful... we are pregnant and expecting a child in December and I've been trying to save save save but it's impossible with all these things popping up that I end up paying for (which he never pays back). How do I handle? Do I get mad and threaten? Do I just let I blow over and keep giving it my best effort to stay afloat (because life's to short)? Need advice... apart of me wonders if he's just taking advantage... his dad does that to his mom.. she's worked like 60 hours a week while he just stays home and drinks all day.. so apart of me wonders if he's just trying to push and see how much I'll pay/taking advantage.. but the truth is I don't know and would find it so hard to believe if he was ... just need advice please