Begging and using your family situation for anything is beta. You need to step up and use your power to get more money. If you're not paid enough; LEAVE! Grow a backbone.
Real career progression doesn't happen off the back of begging. I certainly won't take you seriously for any position of power if you try and beg your way there.
I don't care about your family plans, I care about the value you bring to me. Be valuable, be alpha, be worth what you're asking for or fuck right off.
Down vote and censor my language all you want; you don't win by being a whining ass bitch.