As a male i support you. I know theres alot of males out there "calling you out" for wanting the money but thats just not true. You're JUST holding him accountable to raising HIS child. If he didnt want to provide for a baby he shouldn't have gotten you pregnant. I also read he doesnt contribute to anything, well babies eat, shit,sleep repeat, thats alot of food and diapers and as a single parent it must be hard doing it by yourself. 

And wow that sister of yours... why want enemies when you have a blood sibling that does that. 

i think your sister fails to see how they will never be welcome into the family, after all no one is going to respect him or her. Just imagine a family gathering and everyone shows up. "here comes the 'sin verguenza' (without shame- hispanic saying)"